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Finding the Third Proportional to 129,031 and 195,490

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Solution

The third proportional to 129,031 and 195,490 is: 296,179.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,031 : 195,490 = 195,490 : x
  2. Step 2: Convert to fraction form
    129,031/195,490 = 195,490/x
  3. Step 3: Cross multiply
    129,031x = 195,490 × 195,490
  4. Step 4: Simplify right side
    129,031x = 38,216,340,100
  5. Step 5: Solve for x
    x = 38,216,340,100/129,031
  6. Step 6: Final answer
    x = 296,179.52

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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.