Home / 218,307.11-327,460.67-78,057.23

Finding the Fourth Proportional to 218,307.11, 327,460.67 and 78,057.23

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Solution

The fourth proportional to 218,307.11, 327,460.67 and 78,057.23 is: 117,085.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,307.11 : 327,460.67 = 78,057.23 : x
  2. Step 2: Convert to fraction form
    218,307.11/327,460.67 = 78,057.23/x
  3. Step 3: Cross multiply
    218,307.11x = 327,460.67 × 78,057.23
  4. Step 4: Simplify right side
    218,307.11x = 25,560,672,834.14
  5. Step 5: Solve for x
    x = 25,560,672,834.14/218,307.11
  6. Step 6: Final answer
    x = 117,085.85

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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.