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Finding the Third Proportional to 142,181 and 216,344

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Solution

The third proportional to 142,181 and 216,344 is: 329,191.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,181 : 216,344 = 216,344 : x
  2. Step 2: Convert to fraction form
    142,181/216,344 = 216,344/x
  3. Step 3: Cross multiply
    142,181x = 216,344 × 216,344
  4. Step 4: Simplify right side
    142,181x = 46,804,726,336
  5. Step 5: Solve for x
    x = 46,804,726,336/142,181
  6. Step 6: Final answer
    x = 329,191.15

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.