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Finding the Third Proportional to 87,240 and 130,855

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Solution

The third proportional to 87,240 and 130,855 is: 196,275.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,240 : 130,855 = 130,855 : x
  2. Step 2: Convert to fraction form
    87,240/130,855 = 130,855/x
  3. Step 3: Cross multiply
    87,240x = 130,855 × 130,855
  4. Step 4: Simplify right side
    87,240x = 17,123,031,025
  5. Step 5: Solve for x
    x = 17,123,031,025/87,240
  6. Step 6: Final answer
    x = 196,275.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.