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Finding the Third Proportional to 243,810 and 323,505.75

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Solution

The third proportional to 243,810 and 323,505.75 is: 429,252.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,810 : 323,505.75 = 323,505.75 : x
  2. Step 2: Convert to fraction form
    243,810/323,505.75 = 323,505.75/x
  3. Step 3: Cross multiply
    243,810x = 323,505.75 × 323,505.75
  4. Step 4: Simplify right side
    243,810x = 104,655,970,283.06
  5. Step 5: Solve for x
    x = 104,655,970,283.06/243,810
  6. Step 6: Final answer
    x = 429,252.16

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.