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Finding the Third Proportional to 178,260 and 278,327

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Solution

The third proportional to 178,260 and 278,327 is: 434,567.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,260 : 278,327 = 278,327 : x
  2. Step 2: Convert to fraction form
    178,260/278,327 = 278,327/x
  3. Step 3: Cross multiply
    178,260x = 278,327 × 278,327
  4. Step 4: Simplify right side
    178,260x = 77,465,918,929
  5. Step 5: Solve for x
    x = 77,465,918,929/178,260
  6. Step 6: Final answer
    x = 434,567.03

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.