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Finding the Fourth Proportional to 324,367.20, 486,281.88 and 199,445.76

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Solution

The fourth proportional to 324,367.20, 486,281.88 and 199,445.76 is: 299,003.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,367.20 : 486,281.88 = 199,445.76 : x
  2. Step 2: Convert to fraction form
    324,367.20/486,281.88 = 199,445.76/x
  3. Step 3: Cross multiply
    324,367.20x = 486,281.88 × 199,445.76
  4. Step 4: Simplify right side
    324,367.20x = 96,986,859,130.83
  5. Step 5: Solve for x
    x = 96,986,859,130.83/324,367.20
  6. Step 6: Final answer
    x = 299,003.29

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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.