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Finding the Third Proportional to 134,040 and 288,672

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Solution

The third proportional to 134,040 and 288,672 is: 621,691.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,040 : 288,672 = 288,672 : x
  2. Step 2: Convert to fraction form
    134,040/288,672 = 288,672/x
  3. Step 3: Cross multiply
    134,040x = 288,672 × 288,672
  4. Step 4: Simplify right side
    134,040x = 83,331,523,584
  5. Step 5: Solve for x
    x = 83,331,523,584/134,040
  6. Step 6: Final answer
    x = 621,691.46

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.