Home / 276,820.28-379,520.59-271,775.78

Finding the Fourth Proportional to 276,820.28, 379,520.59 and 271,775.78

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Solution

The fourth proportional to 276,820.28, 379,520.59 and 271,775.78 is: 372,604.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,820.28 : 379,520.59 = 271,775.78 : x
  2. Step 2: Convert to fraction form
    276,820.28/379,520.59 = 271,775.78/x
  3. Step 3: Cross multiply
    276,820.28x = 379,520.59 × 271,775.78
  4. Step 4: Simplify right side
    276,820.28x = 103,144,504,373.31
  5. Step 5: Solve for x
    x = 103,144,504,373.31/276,820.28
  6. Step 6: Final answer
    x = 372,604.58

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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.