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Finding the Third Proportional to 102,719 and 153,387

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Solution

The third proportional to 102,719 and 153,387 is: 229,047.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,719 : 153,387 = 153,387 : x
  2. Step 2: Convert to fraction form
    102,719/153,387 = 153,387/x
  3. Step 3: Cross multiply
    102,719x = 153,387 × 153,387
  4. Step 4: Simplify right side
    102,719x = 23,527,571,769
  5. Step 5: Solve for x
    x = 23,527,571,769/102,719
  6. Step 6: Final answer
    x = 229,047.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.