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Finding the Fourth Proportional to 187,577.76, 281,275.92 and 69,304.80

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Solution

The fourth proportional to 187,577.76, 281,275.92 and 69,304.80 is: 103,923.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,577.76 : 281,275.92 = 69,304.80 : x
  2. Step 2: Convert to fraction form
    187,577.76/281,275.92 = 69,304.80/x
  3. Step 3: Cross multiply
    187,577.76x = 281,275.92 × 69,304.80
  4. Step 4: Simplify right side
    187,577.76x = 19,493,771,380.42
  5. Step 5: Solve for x
    x = 19,493,771,380.42/187,577.76
  6. Step 6: Final answer
    x = 103,923.68

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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.