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Finding the Third Proportional to 71,386 and 155,492

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Solution

The third proportional to 71,386 and 155,492 is: 338,690.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,386 : 155,492 = 155,492 : x
  2. Step 2: Convert to fraction form
    71,386/155,492 = 155,492/x
  3. Step 3: Cross multiply
    71,386x = 155,492 × 155,492
  4. Step 4: Simplify right side
    71,386x = 24,177,762,064
  5. Step 5: Solve for x
    x = 24,177,762,064/71,386
  6. Step 6: Final answer
    x = 338,690.53

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.