Home / 276,499.25-381,576.10-155,644.86

Finding the Fourth Proportional to 276,499.25, 381,576.10 and 155,644.86

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Solution

The fourth proportional to 276,499.25, 381,576.10 and 155,644.86 is: 214,793.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,499.25 : 381,576.10 = 155,644.86 : x
  2. Step 2: Convert to fraction form
    276,499.25/381,576.10 = 155,644.86/x
  3. Step 3: Cross multiply
    276,499.25x = 381,576.10 × 155,644.86
  4. Step 4: Simplify right side
    276,499.25x = 59,390,358,573.92
  5. Step 5: Solve for x
    x = 59,390,358,573.92/276,499.25
  6. Step 6: Final answer
    x = 214,793.92

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1.5x scale

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.