Home / 215,468.91-323,178.66-82,346.22

Finding the Fourth Proportional to 215,468.91, 323,178.66 and 82,346.22

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Solution

The fourth proportional to 215,468.91, 323,178.66 and 82,346.22 is: 123,509.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,468.91 : 323,178.66 = 82,346.22 : x
  2. Step 2: Convert to fraction form
    215,468.91/323,178.66 = 82,346.22/x
  3. Step 3: Cross multiply
    215,468.91x = 323,178.66 × 82,346.22
  4. Step 4: Simplify right side
    215,468.91x = 26,612,541,035.67
  5. Step 5: Solve for x
    x = 26,612,541,035.67/215,468.91
  6. Step 6: Final answer
    x = 123,509.89

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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.