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Finding the Fourth Proportional to 440,248.78, 660,474.03 and 159,766.06

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Solution

The fourth proportional to 440,248.78, 660,474.03 and 159,766.06 is: 239,685.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,248.78 : 660,474.03 = 159,766.06 : x
  2. Step 2: Convert to fraction form
    440,248.78/660,474.03 = 159,766.06/x
  3. Step 3: Cross multiply
    440,248.78x = 660,474.03 × 159,766.06
  4. Step 4: Simplify right side
    440,248.78x = 105,521,333,505.42
  5. Step 5: Solve for x
    x = 105,521,333,505.42/440,248.78
  6. Step 6: Final answer
    x = 239,685.69

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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.