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Finding the Third Proportional to 102,278 and 156,988

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Solution

The third proportional to 102,278 and 156,988 is: 240,963.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,278 : 156,988 = 156,988 : x
  2. Step 2: Convert to fraction form
    102,278/156,988 = 156,988/x
  3. Step 3: Cross multiply
    102,278x = 156,988 × 156,988
  4. Step 4: Simplify right side
    102,278x = 24,645,232,144
  5. Step 5: Solve for x
    x = 24,645,232,144/102,278
  6. Step 6: Final answer
    x = 240,963.18

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.