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Finding the Third Proportional to 131,376.38 and 287,290.13

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Solution

The third proportional to 131,376.38 and 287,290.13 is: 628,237.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,376.38 : 287,290.13 = 287,290.13 : x
  2. Step 2: Convert to fraction form
    131,376.38/287,290.13 = 287,290.13/x
  3. Step 3: Cross multiply
    131,376.38x = 287,290.13 × 287,290.13
  4. Step 4: Simplify right side
    131,376.38x = 82,535,615,922.52
  5. Step 5: Solve for x
    x = 82,535,615,922.52/131,376.38
  6. Step 6: Final answer
    x = 628,237.88

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.