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Finding the Fourth Proportional to 359,308.68, 539,173.08 and 199,519.20

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Solution

The fourth proportional to 359,308.68, 539,173.08 and 199,519.20 is: 299,395.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,308.68 : 539,173.08 = 199,519.20 : x
  2. Step 2: Convert to fraction form
    359,308.68/539,173.08 = 199,519.20/x
  3. Step 3: Cross multiply
    359,308.68x = 539,173.08 × 199,519.20
  4. Step 4: Simplify right side
    359,308.68x = 107,575,381,583.14
  5. Step 5: Solve for x
    x = 107,575,381,583.14/359,308.68
  6. Step 6: Final answer
    x = 299,395.44

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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.