Home / 276,177.65-381,121.54-155,318.90

Finding the Fourth Proportional to 276,177.65, 381,121.54 and 155,318.90

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Solution

The fourth proportional to 276,177.65, 381,121.54 and 155,318.90 is: 214,338.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,177.65 : 381,121.54 = 155,318.90 : x
  2. Step 2: Convert to fraction form
    276,177.65/381,121.54 = 155,318.90/x
  3. Step 3: Cross multiply
    276,177.65x = 381,121.54 × 155,318.90
  4. Step 4: Simplify right side
    276,177.65x = 59,195,376,065.20
  5. Step 5: Solve for x
    x = 59,195,376,065.20/276,177.65
  6. Step 6: Final answer
    x = 214,338.04

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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.