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Finding the Third Proportional to 86,522 and 187,731

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Solution

The third proportional to 86,522 and 187,731 is: 407,329.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,522 : 187,731 = 187,731 : x
  2. Step 2: Convert to fraction form
    86,522/187,731 = 187,731/x
  3. Step 3: Cross multiply
    86,522x = 187,731 × 187,731
  4. Step 4: Simplify right side
    86,522x = 35,242,928,361
  5. Step 5: Solve for x
    x = 35,242,928,361/86,522
  6. Step 6: Final answer
    x = 407,329.10

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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.