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Finding the Fourth Proportional to 324,099.40, 486,149.10 and 166,343.80

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Solution

The fourth proportional to 324,099.40, 486,149.10 and 166,343.80 is: 249,515.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,099.40 : 486,149.10 = 166,343.80 : x
  2. Step 2: Convert to fraction form
    324,099.40/486,149.10 = 166,343.80/x
  3. Step 3: Cross multiply
    324,099.40x = 486,149.10 × 166,343.80
  4. Step 4: Simplify right side
    324,099.40x = 80,867,888,660.58
  5. Step 5: Solve for x
    x = 80,867,888,660.58/324,099.40
  6. Step 6: Final answer
    x = 249,515.70

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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.