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Finding the Fourth Proportional to 356,499.20, 534,729.12 and 119,817.44

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Solution

The fourth proportional to 356,499.20, 534,729.12 and 119,817.44 is: 179,719.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,499.20 : 534,729.12 = 119,817.44 : x
  2. Step 2: Convert to fraction form
    356,499.20/534,729.12 = 119,817.44/x
  3. Step 3: Cross multiply
    356,499.20x = 534,729.12 × 119,817.44
  4. Step 4: Simplify right side
    356,499.20x = 64,069,874,251.85
  5. Step 5: Solve for x
    x = 64,069,874,251.85/356,499.20
  6. Step 6: Final answer
    x = 179,719.55

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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.