Home / 215,340.16-322,960.48-82,171.84

Finding the Fourth Proportional to 215,340.16, 322,960.48 and 82,171.84

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Solution

The fourth proportional to 215,340.16, 322,960.48 and 82,171.84 is: 123,238.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,340.16 : 322,960.48 = 82,171.84 : x
  2. Step 2: Convert to fraction form
    215,340.16/322,960.48 = 82,171.84/x
  3. Step 3: Cross multiply
    215,340.16x = 322,960.48 × 82,171.84
  4. Step 4: Simplify right side
    215,340.16x = 26,538,256,888.88
  5. Step 5: Solve for x
    x = 26,538,256,888.88/215,340.16
  6. Step 6: Final answer
    x = 123,238.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.