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Finding the Fourth Proportional to 276,809.13, 379,505.03 and 271,764.45

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Solution

The fourth proportional to 276,809.13, 379,505.03 and 271,764.45 is: 372,588.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,809.13 : 379,505.03 = 271,764.45 : x
  2. Step 2: Convert to fraction form
    276,809.13/379,505.03 = 271,764.45/x
  3. Step 3: Cross multiply
    276,809.13x = 379,505.03 × 271,764.45
  4. Step 4: Simplify right side
    276,809.13x = 103,135,974,391.36
  5. Step 5: Solve for x
    x = 103,135,974,391.36/276,809.13
  6. Step 6: Final answer
    x = 372,588.77

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.