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Finding the Fourth Proportional to 276,327.60, 414,248.40 and 187,292.40

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Solution

The fourth proportional to 276,327.60, 414,248.40 and 187,292.40 is: 280,773.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,327.60 : 414,248.40 = 187,292.40 : x
  2. Step 2: Convert to fraction form
    276,327.60/414,248.40 = 187,292.40/x
  3. Step 3: Cross multiply
    276,327.60x = 414,248.40 × 187,292.40
  4. Step 4: Simplify right side
    276,327.60x = 77,585,577,032.16
  5. Step 5: Solve for x
    x = 77,585,577,032.16/276,327.60
  6. Step 6: Final answer
    x = 280,773.90

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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.