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Finding the Fourth Proportional to 311,515.26, 467,311.78 and 121,951.14

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Solution

The fourth proportional to 311,515.26, 467,311.78 and 121,951.14 is: 182,941.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,515.26 : 467,311.78 = 121,951.14 : x
  2. Step 2: Convert to fraction form
    311,515.26/467,311.78 = 121,951.14/x
  3. Step 3: Cross multiply
    311,515.26x = 467,311.78 × 121,951.14
  4. Step 4: Simplify right side
    311,515.26x = 56,989,204,306.43
  5. Step 5: Solve for x
    x = 56,989,204,306.43/311,515.26
  6. Step 6: Final answer
    x = 182,941.93

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1.5x scale

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.