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Finding the Third Proportional to 58,470 and 126,780

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Solution

The third proportional to 58,470 and 126,780 is: 274,895.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,470 : 126,780 = 126,780 : x
  2. Step 2: Convert to fraction form
    58,470/126,780 = 126,780/x
  3. Step 3: Cross multiply
    58,470x = 126,780 × 126,780
  4. Step 4: Simplify right side
    58,470x = 16,073,168,400
  5. Step 5: Solve for x
    x = 16,073,168,400/58,470
  6. Step 6: Final answer
    x = 274,895.99

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.