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Finding the Fourth Proportional to 319,614.92, 479,589.82 and 120,073

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Solution

The fourth proportional to 319,614.92, 479,589.82 and 120,073 is: 180,172.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,614.92 : 479,589.82 = 120,073 : x
  2. Step 2: Convert to fraction form
    319,614.92/479,589.82 = 120,073/x
  3. Step 3: Cross multiply
    319,614.92x = 479,589.82 × 120,073
  4. Step 4: Simplify right side
    319,614.92x = 57,585,788,456.86
  5. Step 5: Solve for x
    x = 57,585,788,456.86/319,614.92
  6. Step 6: Final answer
    x = 180,172.40

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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.