Home / 276,686.91-381,822.77-150,814.76

Finding the Fourth Proportional to 276,686.91, 381,822.77 and 150,814.76

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Solution

The fourth proportional to 276,686.91, 381,822.77 and 150,814.76 is: 208,121.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,686.91 : 381,822.77 = 150,814.76 : x
  2. Step 2: Convert to fraction form
    276,686.91/381,822.77 = 150,814.76/x
  3. Step 3: Cross multiply
    276,686.91x = 381,822.77 × 150,814.76
  4. Step 4: Simplify right side
    276,686.91x = 57,584,509,420.09
  5. Step 5: Solve for x
    x = 57,584,509,420.09/276,686.91
  6. Step 6: Final answer
    x = 208,121.55

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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.