Home / 311,829.60-467,744.40-112,180.80

Finding the Fourth Proportional to 311,829.60, 467,744.40 and 112,180.80

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Solution

The fourth proportional to 311,829.60, 467,744.40 and 112,180.80 is: 168,271.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,829.60 : 467,744.40 = 112,180.80 : x
  2. Step 2: Convert to fraction form
    311,829.60/467,744.40 = 112,180.80/x
  3. Step 3: Cross multiply
    311,829.60x = 467,744.40 × 112,180.80
  4. Step 4: Simplify right side
    311,829.60x = 52,471,940,987.52
  5. Step 5: Solve for x
    x = 52,471,940,987.52/311,829.60
  6. Step 6: Final answer
    x = 168,271.20

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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.