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Finding the Third Proportional to 58,392 and 129,744

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Solution

The third proportional to 58,392 and 129,744 is: 288,284.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,392 : 129,744 = 129,744 : x
  2. Step 2: Convert to fraction form
    58,392/129,744 = 129,744/x
  3. Step 3: Cross multiply
    58,392x = 129,744 × 129,744
  4. Step 4: Simplify right side
    58,392x = 16,833,505,536
  5. Step 5: Solve for x
    x = 16,833,505,536/58,392
  6. Step 6: Final answer
    x = 288,284.45

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.