Home / 268,353.28-402,505.24-90,840

Finding the Fourth Proportional to 268,353.28, 402,505.24 and 90,840

Calculator

Solution

The fourth proportional to 268,353.28, 402,505.24 and 90,840 is: 136,251.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,353.28 : 402,505.24 = 90,840 : x
  2. Step 2: Convert to fraction form
    268,353.28/402,505.24 = 90,840/x
  3. Step 3: Cross multiply
    268,353.28x = 402,505.24 × 90,840
  4. Step 4: Simplify right side
    268,353.28x = 36,563,576,001.60
  5. Step 5: Solve for x
    x = 36,563,576,001.60/268,353.28
  6. Step 6: Final answer
    x = 136,251.65

Related Problems

Find fourth proportional to 134,176.64, 201,252.62 and 45,420
Half scale
Find fourth proportional to 536,706.56, 805,010.48 and 181,680
Double scale
Find fourth proportional to 268,354.28, 402,506.74 and 90,841
Similar ratio
Find fourth proportional to 402,529.92, 603,757.86 and 136,260
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.