Home / 298,619.20-447,928.80-132,407.20

Finding the Fourth Proportional to 298,619.20, 447,928.80 and 132,407.20

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Solution

The fourth proportional to 298,619.20, 447,928.80 and 132,407.20 is: 198,610.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,619.20 : 447,928.80 = 132,407.20 : x
  2. Step 2: Convert to fraction form
    298,619.20/447,928.80 = 132,407.20/x
  3. Step 3: Cross multiply
    298,619.20x = 447,928.80 × 132,407.20
  4. Step 4: Simplify right side
    298,619.20x = 59,308,998,207.36
  5. Step 5: Solve for x
    x = 59,308,998,207.36/298,619.20
  6. Step 6: Final answer
    x = 198,610.80

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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.