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Finding the Fourth Proportional to 243,960.87, 336,818.82 and 156,781.34

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Solution

The fourth proportional to 243,960.87, 336,818.82 and 156,781.34 is: 216,456.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,960.87 : 336,818.82 = 156,781.34 : x
  2. Step 2: Convert to fraction form
    243,960.87/336,818.82 = 156,781.34/x
  3. Step 3: Cross multiply
    243,960.87x = 336,818.82 × 156,781.34
  4. Step 4: Simplify right side
    243,960.87x = 52,806,904,252.72
  5. Step 5: Solve for x
    x = 52,806,904,252.72/243,960.87
  6. Step 6: Final answer
    x = 216,456.45

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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.