Home / 257,471.24-355,331.25-142,761.27

Finding the Fourth Proportional to 257,471.24, 355,331.25 and 142,761.27

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Solution

The fourth proportional to 257,471.24, 355,331.25 and 142,761.27 is: 197,022.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,471.24 : 355,331.25 = 142,761.27 : x
  2. Step 2: Convert to fraction form
    257,471.24/355,331.25 = 142,761.27/x
  3. Step 3: Cross multiply
    257,471.24x = 355,331.25 × 142,761.27
  4. Step 4: Simplify right side
    257,471.24x = 50,727,538,744.03
  5. Step 5: Solve for x
    x = 50,727,538,744.03/257,471.24
  6. Step 6: Final answer
    x = 197,022.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.