Home / 392,747.76-541,965.96-231,595.20

Finding the Fourth Proportional to 392,747.76, 541,965.96 and 231,595.20

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Solution

The fourth proportional to 392,747.76, 541,965.96 and 231,595.20 is: 319,586.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,747.76 : 541,965.96 = 231,595.20 : x
  2. Step 2: Convert to fraction form
    392,747.76/541,965.96 = 231,595.20/x
  3. Step 3: Cross multiply
    392,747.76x = 541,965.96 × 231,595.20
  4. Step 4: Simplify right side
    392,747.76x = 125,516,714,899.39
  5. Step 5: Solve for x
    x = 125,516,714,899.39/392,747.76
  6. Step 6: Final answer
    x = 319,586.07

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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.