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Finding the Fourth Proportional to 359,375.60, 539,063.40 and 329,049.20

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Solution

The fourth proportional to 359,375.60, 539,063.40 and 329,049.20 is: 493,573.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,375.60 : 539,063.40 = 329,049.20 : x
  2. Step 2: Convert to fraction form
    359,375.60/539,063.40 = 329,049.20/x
  3. Step 3: Cross multiply
    359,375.60x = 539,063.40 × 329,049.20
  4. Step 4: Simplify right side
    359,375.60x = 177,378,380,519.28
  5. Step 5: Solve for x
    x = 177,378,380,519.28/359,375.60
  6. Step 6: Final answer
    x = 493,573.80

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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.