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Finding the Fourth Proportional to 359,611.52, 539,250.42 and 209,894.90

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Solution

The fourth proportional to 359,611.52, 539,250.42 and 209,894.90 is: 314,744.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,611.52 : 539,250.42 = 209,894.90 : x
  2. Step 2: Convert to fraction form
    359,611.52/539,250.42 = 209,894.90/x
  3. Step 3: Cross multiply
    359,611.52x = 539,250.42 × 209,894.90
  4. Step 4: Simplify right side
    359,611.52x = 113,185,912,980.86
  5. Step 5: Solve for x
    x = 113,185,912,980.86/359,611.52
  6. Step 6: Final answer
    x = 314,744.96

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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.