Home / 218,401.11-327,697.07-76,348.38

Finding the Fourth Proportional to 218,401.11, 327,697.07 and 76,348.38

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Solution

The fourth proportional to 218,401.11, 327,697.07 and 76,348.38 is: 114,555.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,401.11 : 327,697.07 = 76,348.38 : x
  2. Step 2: Convert to fraction form
    218,401.11/327,697.07 = 76,348.38/x
  3. Step 3: Cross multiply
    218,401.11x = 327,697.07 × 76,348.38
  4. Step 4: Simplify right side
    218,401.11x = 25,019,138,814.64
  5. Step 5: Solve for x
    x = 25,019,138,814.64/218,401.11
  6. Step 6: Final answer
    x = 114,555.91

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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.