Home / 276,646.32-381,768.18-155,789.10

Finding the Fourth Proportional to 276,646.32, 381,768.18 and 155,789.10

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Solution

The fourth proportional to 276,646.32, 381,768.18 and 155,789.10 is: 214,986.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,646.32 : 381,768.18 = 155,789.10 : x
  2. Step 2: Convert to fraction form
    276,646.32/381,768.18 = 155,789.10/x
  3. Step 3: Cross multiply
    276,646.32x = 381,768.18 × 155,789.10
  4. Step 4: Simplify right side
    276,646.32x = 59,475,321,170.84
  5. Step 5: Solve for x
    x = 59,475,321,170.84/276,646.32
  6. Step 6: Final answer
    x = 214,986.85

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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.