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Finding the Third Proportional to 71,020 and 155,403

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Solution

The third proportional to 71,020 and 155,403 is: 340,046.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,020 : 155,403 = 155,403 : x
  2. Step 2: Convert to fraction form
    71,020/155,403 = 155,403/x
  3. Step 3: Cross multiply
    71,020x = 155,403 × 155,403
  4. Step 4: Simplify right side
    71,020x = 24,150,092,409
  5. Step 5: Solve for x
    x = 24,150,092,409/71,020
  6. Step 6: Final answer
    x = 340,046.36

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.