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Finding the Fourth Proportional to 276,813.95, 382,003.25 and 149,489.54

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Solution

The fourth proportional to 276,813.95, 382,003.25 and 149,489.54 is: 206,295.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,813.95 : 382,003.25 = 149,489.54 : x
  2. Step 2: Convert to fraction form
    276,813.95/382,003.25 = 149,489.54/x
  3. Step 3: Cross multiply
    276,813.95x = 382,003.25 × 149,489.54
  4. Step 4: Simplify right side
    276,813.95x = 57,105,490,121.01
  5. Step 5: Solve for x
    x = 57,105,490,121.01/276,813.95
  6. Step 6: Final answer
    x = 206,295.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.