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Finding the Third Proportional to 87,499 and 187,430

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Solution

The third proportional to 87,499 and 187,430 is: 401,490.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,499 : 187,430 = 187,430 : x
  2. Step 2: Convert to fraction form
    87,499/187,430 = 187,430/x
  3. Step 3: Cross multiply
    87,499x = 187,430 × 187,430
  4. Step 4: Simplify right side
    87,499x = 35,130,004,900
  5. Step 5: Solve for x
    x = 35,130,004,900/87,499
  6. Step 6: Final answer
    x = 401,490.36

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.