Home / 423,845.28-635,691.24-171,115.20

Finding the Fourth Proportional to 423,845.28, 635,691.24 and 171,115.20

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Solution

The fourth proportional to 423,845.28, 635,691.24 and 171,115.20 is: 256,641.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,845.28 : 635,691.24 = 171,115.20 : x
  2. Step 2: Convert to fraction form
    423,845.28/635,691.24 = 171,115.20/x
  3. Step 3: Cross multiply
    423,845.28x = 635,691.24 × 171,115.20
  4. Step 4: Simplify right side
    423,845.28x = 108,776,433,670.85
  5. Step 5: Solve for x
    x = 108,776,433,670.85/423,845.28
  6. Step 6: Final answer
    x = 256,641.84

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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.