Home / 276,548.85-381,633.17-155,689.74

Finding the Fourth Proportional to 276,548.85, 381,633.17 and 155,689.74

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Solution

The fourth proportional to 276,548.85, 381,633.17 and 155,689.74 is: 214,849.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,548.85 : 381,633.17 = 155,689.74 : x
  2. Step 2: Convert to fraction form
    276,548.85/381,633.17 = 155,689.74/x
  3. Step 3: Cross multiply
    276,548.85x = 381,633.17 × 155,689.74
  4. Step 4: Simplify right side
    276,548.85x = 59,416,368,234.23
  5. Step 5: Solve for x
    x = 59,416,368,234.23/276,548.85
  6. Step 6: Final answer
    x = 214,849.45

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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.