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Finding the Third Proportional to 243,877.50 and 323,581.50

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Solution

The third proportional to 243,877.50 and 323,581.50 is: 429,334.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,877.50 : 323,581.50 = 323,581.50 : x
  2. Step 2: Convert to fraction form
    243,877.50/323,581.50 = 323,581.50/x
  3. Step 3: Cross multiply
    243,877.50x = 323,581.50 × 323,581.50
  4. Step 4: Simplify right side
    243,877.50x = 104,704,987,142.25
  5. Step 5: Solve for x
    x = 104,704,987,142.25/243,877.50
  6. Step 6: Final answer
    x = 429,334.35

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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.