Home / 276,726.28-379,391.40-271,681.76

Finding the Fourth Proportional to 276,726.28, 379,391.40 and 271,681.76

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Solution

The fourth proportional to 276,726.28, 379,391.40 and 271,681.76 is: 372,475.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,726.28 : 379,391.40 = 271,681.76 : x
  2. Step 2: Convert to fraction form
    276,726.28/379,391.40 = 271,681.76/x
  3. Step 3: Cross multiply
    276,726.28x = 379,391.40 × 271,681.76
  4. Step 4: Simplify right side
    276,726.28x = 103,073,723,280.86
  5. Step 5: Solve for x
    x = 103,073,723,280.86/276,726.28
  6. Step 6: Final answer
    x = 372,475.37

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1.5x scale

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.