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Finding the Third Proportional to 261,844.88 and 400,381.88

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Solution

The third proportional to 261,844.88 and 400,381.88 is: 612,216.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,844.88 : 400,381.88 = 400,381.88 : x
  2. Step 2: Convert to fraction form
    261,844.88/400,381.88 = 400,381.88/x
  3. Step 3: Cross multiply
    261,844.88x = 400,381.88 × 400,381.88
  4. Step 4: Simplify right side
    261,844.88x = 160,305,645,828.52
  5. Step 5: Solve for x
    x = 160,305,645,828.52/261,844.88
  6. Step 6: Final answer
    x = 612,216.09

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.