Home / 218,789.20-328,183.75-52,577.20

Finding the Fourth Proportional to 218,789.20, 328,183.75 and 52,577.20

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Solution

The fourth proportional to 218,789.20, 328,183.75 and 52,577.20 is: 78,865.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,789.20 : 328,183.75 = 52,577.20 : x
  2. Step 2: Convert to fraction form
    218,789.20/328,183.75 = 52,577.20/x
  3. Step 3: Cross multiply
    218,789.20x = 328,183.75 × 52,577.20
  4. Step 4: Simplify right side
    218,789.20x = 17,254,982,660.50
  5. Step 5: Solve for x
    x = 17,254,982,660.50/218,789.20
  6. Step 6: Final answer
    x = 78,865.79

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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.