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Finding the Third Proportional to 188,118 and 291,402

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Solution

The third proportional to 188,118 and 291,402 is: 451,392.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,118 : 291,402 = 291,402 : x
  2. Step 2: Convert to fraction form
    188,118/291,402 = 291,402/x
  3. Step 3: Cross multiply
    188,118x = 291,402 × 291,402
  4. Step 4: Simplify right side
    188,118x = 84,915,125,604
  5. Step 5: Solve for x
    x = 84,915,125,604/188,118
  6. Step 6: Final answer
    x = 451,392.88

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.