Home / 218,320.64-327,377.25-76,148.64

Finding the Fourth Proportional to 218,320.64, 327,377.25 and 76,148.64

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Solution

The fourth proportional to 218,320.64, 327,377.25 and 76,148.64 is: 114,186.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,320.64 : 327,377.25 = 76,148.64 : x
  2. Step 2: Convert to fraction form
    218,320.64/327,377.25 = 76,148.64/x
  3. Step 3: Cross multiply
    218,320.64x = 327,377.25 × 76,148.64
  4. Step 4: Simplify right side
    218,320.64x = 24,929,333,789.10
  5. Step 5: Solve for x
    x = 24,929,333,789.10/218,320.64
  6. Step 6: Final answer
    x = 114,186.79

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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.