Home / 276,753.15-381,868.61-155,868.57

Finding the Fourth Proportional to 276,753.15, 381,868.61 and 155,868.57

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Solution

The fourth proportional to 276,753.15, 381,868.61 and 155,868.57 is: 215,070.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,753.15 : 381,868.61 = 155,868.57 : x
  2. Step 2: Convert to fraction form
    276,753.15/381,868.61 = 155,868.57/x
  3. Step 3: Cross multiply
    276,753.15x = 381,868.61 × 155,868.57
  4. Step 4: Simplify right side
    276,753.15x = 59,521,313,389.24
  5. Step 5: Solve for x
    x = 59,521,313,389.24/276,753.15
  6. Step 6: Final answer
    x = 215,070.05

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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.