Home / 215,628.32-323,542.92-82,464.72

Finding the Fourth Proportional to 215,628.32, 323,542.92 and 82,464.72

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Solution

The fourth proportional to 215,628.32, 323,542.92 and 82,464.72 is: 123,735.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,628.32 : 323,542.92 = 82,464.72 : x
  2. Step 2: Convert to fraction form
    215,628.32/323,542.92 = 82,464.72/x
  3. Step 3: Cross multiply
    215,628.32x = 323,542.92 × 82,464.72
  4. Step 4: Simplify right side
    215,628.32x = 26,680,876,305.78
  5. Step 5: Solve for x
    x = 26,680,876,305.78/215,628.32
  6. Step 6: Final answer
    x = 123,735.49

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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.