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Finding the Fourth Proportional to 298,478.88, 447,873.84 and 132,228

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Solution

The fourth proportional to 298,478.88, 447,873.84 and 132,228 is: 198,410.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,478.88 : 447,873.84 = 132,228 : x
  2. Step 2: Convert to fraction form
    298,478.88/447,873.84 = 132,228/x
  3. Step 3: Cross multiply
    298,478.88x = 447,873.84 × 132,228
  4. Step 4: Simplify right side
    298,478.88x = 59,221,462,115.52
  5. Step 5: Solve for x
    x = 59,221,462,115.52/298,478.88
  6. Step 6: Final answer
    x = 198,410.90

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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.