Home / 218,631.57-327,997.58-113,427.15

Finding the Fourth Proportional to 218,631.57, 327,997.58 and 113,427.15

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Solution

The fourth proportional to 218,631.57, 327,997.58 and 113,427.15 is: 170,166.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,631.57 : 327,997.58 = 113,427.15 : x
  2. Step 2: Convert to fraction form
    218,631.57/327,997.58 = 113,427.15/x
  3. Step 3: Cross multiply
    218,631.57x = 327,997.58 × 113,427.15
  4. Step 4: Simplify right side
    218,631.57x = 37,203,830,139.16
  5. Step 5: Solve for x
    x = 37,203,830,139.16/218,631.57
  6. Step 6: Final answer
    x = 170,166.78

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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.