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Finding the Third Proportional to 143,098.50 and 310,780.50

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Solution

The third proportional to 143,098.50 and 310,780.50 is: 674,951.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,098.50 : 310,780.50 = 310,780.50 : x
  2. Step 2: Convert to fraction form
    143,098.50/310,780.50 = 310,780.50/x
  3. Step 3: Cross multiply
    143,098.50x = 310,780.50 × 310,780.50
  4. Step 4: Simplify right side
    143,098.50x = 96,584,519,180.25
  5. Step 5: Solve for x
    x = 96,584,519,180.25/143,098.50
  6. Step 6: Final answer
    x = 674,951.30

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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.