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Finding the Fourth Proportional to 280,781.78, 386,502.44 and 244,909.32

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Solution

The fourth proportional to 280,781.78, 386,502.44 and 244,909.32 is: 337,123.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,781.78 : 386,502.44 = 244,909.32 : x
  2. Step 2: Convert to fraction form
    280,781.78/386,502.44 = 244,909.32/x
  3. Step 3: Cross multiply
    280,781.78x = 386,502.44 × 244,909.32
  4. Step 4: Simplify right side
    280,781.78x = 94,658,049,758.74
  5. Step 5: Solve for x
    x = 94,658,049,758.74/280,781.78
  6. Step 6: Final answer
    x = 337,123.19

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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.