Home / 276,252.12-381,403.17-189,182.97

Finding the Fourth Proportional to 276,252.12, 381,403.17 and 189,182.97

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Solution

The fourth proportional to 276,252.12, 381,403.17 and 189,182.97 is: 261,192.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,252.12 : 381,403.17 = 189,182.97 : x
  2. Step 2: Convert to fraction form
    276,252.12/381,403.17 = 189,182.97/x
  3. Step 3: Cross multiply
    276,252.12x = 381,403.17 × 189,182.97
  4. Step 4: Simplify right side
    276,252.12x = 72,154,984,468.01
  5. Step 5: Solve for x
    x = 72,154,984,468.01/276,252.12
  6. Step 6: Final answer
    x = 261,192.51

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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.