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Finding the Third Proportional to 359,272 and 499,534

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Solution

The third proportional to 359,272 and 499,534 is: 694,555.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,272 : 499,534 = 499,534 : x
  2. Step 2: Convert to fraction form
    359,272/499,534 = 499,534/x
  3. Step 3: Cross multiply
    359,272x = 499,534 × 499,534
  4. Step 4: Simplify right side
    359,272x = 249,534,217,156
  5. Step 5: Solve for x
    x = 249,534,217,156/359,272
  6. Step 6: Final answer
    x = 694,555.15

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.