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Finding the Third Proportional to 135,280 and 293,884

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Solution

The third proportional to 135,280 and 293,884 is: 638,437.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,280 : 293,884 = 293,884 : x
  2. Step 2: Convert to fraction form
    135,280/293,884 = 293,884/x
  3. Step 3: Cross multiply
    135,280x = 293,884 × 293,884
  4. Step 4: Simplify right side
    135,280x = 86,367,805,456
  5. Step 5: Solve for x
    x = 86,367,805,456/135,280
  6. Step 6: Final answer
    x = 638,437.36

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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.