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Finding the Fourth Proportional to 440,297.85, 660,279.11 and 187,418.73

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Solution

The fourth proportional to 440,297.85, 660,279.11 and 187,418.73 is: 281,056.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,297.85 : 660,279.11 = 187,418.73 : x
  2. Step 2: Convert to fraction form
    440,297.85/660,279.11 = 187,418.73/x
  3. Step 3: Cross multiply
    440,297.85x = 660,279.11 × 187,418.73
  4. Step 4: Simplify right side
    440,297.85x = 123,748,671,304.64
  5. Step 5: Solve for x
    x = 123,748,671,304.64/440,297.85
  6. Step 6: Final answer
    x = 281,056.72

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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.