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Finding the Fourth Proportional to 311,843.60, 467,765.40 and 112,194.80

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Solution

The fourth proportional to 311,843.60, 467,765.40 and 112,194.80 is: 168,292.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,843.60 : 467,765.40 = 112,194.80 : x
  2. Step 2: Convert to fraction form
    311,843.60/467,765.40 = 112,194.80/x
  3. Step 3: Cross multiply
    311,843.60x = 467,765.40 × 112,194.80
  4. Step 4: Simplify right side
    311,843.60x = 52,480,845,499.92
  5. Step 5: Solve for x
    x = 52,480,845,499.92/311,843.60
  6. Step 6: Final answer
    x = 168,292.20

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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.