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Finding the Fourth Proportional to 311,375.40, 466,890.30 and 124,175.40

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Solution

The fourth proportional to 311,375.40, 466,890.30 and 124,175.40 is: 186,194.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,375.40 : 466,890.30 = 124,175.40 : x
  2. Step 2: Convert to fraction form
    311,375.40/466,890.30 = 124,175.40/x
  3. Step 3: Cross multiply
    311,375.40x = 466,890.30 × 124,175.40
  4. Step 4: Simplify right side
    311,375.40x = 57,976,289,758.62
  5. Step 5: Solve for x
    x = 57,976,289,758.62/311,375.40
  6. Step 6: Final answer
    x = 186,194.19

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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.