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Finding the Third Proportional to 157,540 and 235,280

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Solution

The third proportional to 157,540 and 235,280 is: 351,381.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,540 : 235,280 = 235,280 : x
  2. Step 2: Convert to fraction form
    157,540/235,280 = 235,280/x
  3. Step 3: Cross multiply
    157,540x = 235,280 × 235,280
  4. Step 4: Simplify right side
    157,540x = 55,356,678,400
  5. Step 5: Solve for x
    x = 55,356,678,400/157,540
  6. Step 6: Final answer
    x = 351,381.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.