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Finding the Fourth Proportional to 319,452.92, 479,123.18 and 117,007.20

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Solution

The fourth proportional to 319,452.92, 479,123.18 and 117,007.20 is: 175,490.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,452.92 : 479,123.18 = 117,007.20 : x
  2. Step 2: Convert to fraction form
    319,452.92/479,123.18 = 117,007.20/x
  3. Step 3: Cross multiply
    319,452.92x = 479,123.18 × 117,007.20
  4. Step 4: Simplify right side
    319,452.92x = 56,060,861,746.90
  5. Step 5: Solve for x
    x = 56,060,861,746.90/319,452.92
  6. Step 6: Final answer
    x = 175,490.22

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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.