Home / 311,327.28-429,658.11-175,387.92

Finding the Fourth Proportional to 311,327.28, 429,658.11 and 175,387.92

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Solution

The fourth proportional to 311,327.28, 429,658.11 and 175,387.92 is: 242,050.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,327.28 : 429,658.11 = 175,387.92 : x
  2. Step 2: Convert to fraction form
    311,327.28/429,658.11 = 175,387.92/x
  3. Step 3: Cross multiply
    311,327.28x = 429,658.11 × 175,387.92
  4. Step 4: Simplify right side
    311,327.28x = 75,356,842,224.03
  5. Step 5: Solve for x
    x = 75,356,842,224.03/311,327.28
  6. Step 6: Final answer
    x = 242,050.24

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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.