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Finding the Third Proportional to 115,920 and 176,310

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Solution

The third proportional to 115,920 and 176,310 is: 268,160.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,920 : 176,310 = 176,310 : x
  2. Step 2: Convert to fraction form
    115,920/176,310 = 176,310/x
  3. Step 3: Cross multiply
    115,920x = 176,310 × 176,310
  4. Step 4: Simplify right side
    115,920x = 31,085,216,100
  5. Step 5: Solve for x
    x = 31,085,216,100/115,920
  6. Step 6: Final answer
    x = 268,160.94

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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.