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Finding the Fourth Proportional to 185,627.60, 278,514.30 and 73,288.70

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Solution

The fourth proportional to 185,627.60, 278,514.30 and 73,288.70 is: 109,961.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,627.60 : 278,514.30 = 73,288.70 : x
  2. Step 2: Convert to fraction form
    185,627.60/278,514.30 = 73,288.70/x
  3. Step 3: Cross multiply
    185,627.60x = 278,514.30 × 73,288.70
  4. Step 4: Simplify right side
    185,627.60x = 20,411,950,978.41
  5. Step 5: Solve for x
    x = 20,411,950,978.41/185,627.60
  6. Step 6: Final answer
    x = 109,961.83

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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.