Home / 218,576.50-327,645.87-85,273.36

Finding the Fourth Proportional to 218,576.50, 327,645.87 and 85,273.36

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Solution

The fourth proportional to 218,576.50, 327,645.87 and 85,273.36 is: 127,824.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,576.50 : 327,645.87 = 85,273.36 : x
  2. Step 2: Convert to fraction form
    218,576.50/327,645.87 = 85,273.36/x
  3. Step 3: Cross multiply
    218,576.50x = 327,645.87 × 85,273.36
  4. Step 4: Simplify right side
    218,576.50x = 27,939,464,225.02
  5. Step 5: Solve for x
    x = 27,939,464,225.02/218,576.50
  6. Step 6: Final answer
    x = 127,824.65

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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.