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Finding the Fourth Proportional to 440,202.78, 660,398.82 and 136,590.62

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Solution

The fourth proportional to 440,202.78, 660,398.82 and 136,590.62 is: 204,915.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,202.78 : 660,398.82 = 136,590.62 : x
  2. Step 2: Convert to fraction form
    440,202.78/660,398.82 = 136,590.62/x
  3. Step 3: Cross multiply
    440,202.78x = 660,398.82 × 136,590.62
  4. Step 4: Simplify right side
    440,202.78x = 90,204,286,332.96
  5. Step 5: Solve for x
    x = 90,204,286,332.96/440,202.78
  6. Step 6: Final answer
    x = 204,915.30

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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.