Home / 316.38-474.57-124

Finding the Fourth Proportional to 316.38, 474.57 and 124

Calculator

Solution

The fourth proportional to 316.38, 474.57 and 124 is: 186

Step by Step Solution

  1. Step 1: Write the proportion equation
    316.38 : 474.57 = 124 : x
  2. Step 2: Convert to fraction form
    316.38/474.57 = 124/x
  3. Step 3: Cross multiply
    316.38x = 474.57 × 124
  4. Step 4: Simplify right side
    316.38x = 58,846.68
  5. Step 5: Solve for x
    x = 58,846.68/316.38
  6. Step 6: Final answer
    x = 186

Related Problems

Find fourth proportional to 158.19, 237.29 and 62
Half scale
Find fourth proportional to 632.76, 949.14 and 248
Double scale
Find fourth proportional to 317.38, 476.07 and 125
Similar ratio
Find fourth proportional to 474.57, 711.86 and 186
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.