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Finding the Fourth Proportional to 269,250.75, 403,876.13 and 72,258.75

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Solution

The fourth proportional to 269,250.75, 403,876.13 and 72,258.75 is: 108,388.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,250.75 : 403,876.13 = 72,258.75 : x
  2. Step 2: Convert to fraction form
    269,250.75/403,876.13 = 72,258.75/x
  3. Step 3: Cross multiply
    269,250.75x = 403,876.13 × 72,258.75
  4. Step 4: Simplify right side
    269,250.75x = 29,183,583,947.34
  5. Step 5: Solve for x
    x = 29,183,583,947.34/269,250.75
  6. Step 6: Final answer
    x = 108,388.13

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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.