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Finding the Fourth Proportional to 385,981.92, 532,501.80 and 240,702.24

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Solution

The fourth proportional to 385,981.92, 532,501.80 and 240,702.24 is: 332,073.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,981.92 : 532,501.80 = 240,702.24 : x
  2. Step 2: Convert to fraction form
    385,981.92/532,501.80 = 240,702.24/x
  3. Step 3: Cross multiply
    385,981.92x = 532,501.80 × 240,702.24
  4. Step 4: Simplify right side
    385,981.92x = 128,174,376,064.03
  5. Step 5: Solve for x
    x = 128,174,376,064.03/385,981.92
  6. Step 6: Final answer
    x = 332,073.52

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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.