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Finding the Third Proportional to 125,588 and 178,540

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Solution

The third proportional to 125,588 and 178,540 is: 253,818.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,588 : 178,540 = 178,540 : x
  2. Step 2: Convert to fraction form
    125,588/178,540 = 178,540/x
  3. Step 3: Cross multiply
    125,588x = 178,540 × 178,540
  4. Step 4: Simplify right side
    125,588x = 31,876,531,600
  5. Step 5: Solve for x
    x = 31,876,531,600/125,588
  6. Step 6: Final answer
    x = 253,818.29

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.