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Finding the Fourth Proportional to 359,607.52, 539,244.40 and 209,891.08

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Solution

The fourth proportional to 359,607.52, 539,244.40 and 209,891.08 is: 314,739.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,607.52 : 539,244.40 = 209,891.08 : x
  2. Step 2: Convert to fraction form
    359,607.52/539,244.40 = 209,891.08/x
  3. Step 3: Cross multiply
    359,607.52x = 539,244.40 × 209,891.08
  4. Step 4: Simplify right side
    359,607.52x = 113,182,589,499.95
  5. Step 5: Solve for x
    x = 113,182,589,499.95/359,607.52
  6. Step 6: Final answer
    x = 314,739.22

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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.