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Finding the Third Proportional to 90,538.50 and 143,331.75

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Solution

The third proportional to 90,538.50 and 143,331.75 is: 226,908.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,538.50 : 143,331.75 = 143,331.75 : x
  2. Step 2: Convert to fraction form
    90,538.50/143,331.75 = 143,331.75/x
  3. Step 3: Cross multiply
    90,538.50x = 143,331.75 × 143,331.75
  4. Step 4: Simplify right side
    90,538.50x = 20,543,990,558.06
  5. Step 5: Solve for x
    x = 20,543,990,558.06/90,538.50
  6. Step 6: Final answer
    x = 226,908.89

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.