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Finding the Fourth Proportional to 250,347.33, 375,580.07 and 81,867

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Solution

The fourth proportional to 250,347.33, 375,580.07 and 81,867 is: 122,819.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,347.33 : 375,580.07 = 81,867 : x
  2. Step 2: Convert to fraction form
    250,347.33/375,580.07 = 81,867/x
  3. Step 3: Cross multiply
    250,347.33x = 375,580.07 × 81,867
  4. Step 4: Simplify right side
    250,347.33x = 30,747,613,181.36
  5. Step 5: Solve for x
    x = 30,747,613,181.36/250,347.33
  6. Step 6: Final answer
    x = 122,819.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.