Home / 218,190.28-327,380.16-118,420.96

Finding the Fourth Proportional to 218,190.28, 327,380.16 and 118,420.96

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Solution

The fourth proportional to 218,190.28, 327,380.16 and 118,420.96 is: 177,682.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,190.28 : 327,380.16 = 118,420.96 : x
  2. Step 2: Convert to fraction form
    218,190.28/327,380.16 = 118,420.96/x
  3. Step 3: Cross multiply
    218,190.28x = 327,380.16 × 118,420.96
  4. Step 4: Simplify right side
    218,190.28x = 38,768,672,832.15
  5. Step 5: Solve for x
    x = 38,768,672,832.15/218,190.28
  6. Step 6: Final answer
    x = 177,682.86

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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.