Home / 298,378-447,567-101,386

Finding the Fourth Proportional to 298,378, 447,567 and 101,386

Calculator

Solution

The fourth proportional to 298,378, 447,567 and 101,386 is: 152,079

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,378 : 447,567 = 101,386 : x
  2. Step 2: Convert to fraction form
    298,378/447,567 = 101,386/x
  3. Step 3: Cross multiply
    298,378x = 447,567 × 101,386
  4. Step 4: Simplify right side
    298,378x = 45,377,027,862
  5. Step 5: Solve for x
    x = 45,377,027,862/298,378
  6. Step 6: Final answer
    x = 152,079

Related Problems

Find fourth proportional to 149,189, 223,783.50 and 50,693
Half scale
Find fourth proportional to 596,756, 895,134 and 202,772
Double scale
Find fourth proportional to 298,379, 447,568.50 and 101,387
Similar ratio
Find fourth proportional to 447,567, 671,350.50 and 152,079
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.