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Finding the Third Proportional to 138,684 and 223,332

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Solution

The third proportional to 138,684 and 223,332 is: 359,646.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,684 : 223,332 = 223,332 : x
  2. Step 2: Convert to fraction form
    138,684/223,332 = 223,332/x
  3. Step 3: Cross multiply
    138,684x = 223,332 × 223,332
  4. Step 4: Simplify right side
    138,684x = 49,877,182,224
  5. Step 5: Solve for x
    x = 49,877,182,224/138,684
  6. Step 6: Final answer
    x = 359,646.26

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.