Home / 218,121.78-327,272.85-96,478.38

Finding the Fourth Proportional to 218,121.78, 327,272.85 and 96,478.38

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Solution

The fourth proportional to 218,121.78, 327,272.85 and 96,478.38 is: 144,757.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,121.78 : 327,272.85 = 96,478.38 : x
  2. Step 2: Convert to fraction form
    218,121.78/327,272.85 = 96,478.38/x
  3. Step 3: Cross multiply
    218,121.78x = 327,272.85 × 96,478.38
  4. Step 4: Simplify right side
    218,121.78x = 31,574,754,385.98
  5. Step 5: Solve for x
    x = 31,574,754,385.98/218,121.78
  6. Step 6: Final answer
    x = 144,757.46

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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.