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Finding the Third Proportional to 71,556 and 155,403

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Solution

The third proportional to 71,556 and 155,403 is: 337,499.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,556 : 155,403 = 155,403 : x
  2. Step 2: Convert to fraction form
    71,556/155,403 = 155,403/x
  3. Step 3: Cross multiply
    71,556x = 155,403 × 155,403
  4. Step 4: Simplify right side
    71,556x = 24,150,092,409
  5. Step 5: Solve for x
    x = 24,150,092,409/71,556
  6. Step 6: Final answer
    x = 337,499.20

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.