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Finding the Third Proportional to 143,694.75 and 217,531.50

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Solution

The third proportional to 143,694.75 and 217,531.50 is: 329,308.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,694.75 : 217,531.50 = 217,531.50 : x
  2. Step 2: Convert to fraction form
    143,694.75/217,531.50 = 217,531.50/x
  3. Step 3: Cross multiply
    143,694.75x = 217,531.50 × 217,531.50
  4. Step 4: Simplify right side
    143,694.75x = 47,319,953,492.25
  5. Step 5: Solve for x
    x = 47,319,953,492.25/143,694.75
  6. Step 6: Final answer
    x = 329,308.85

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.