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Finding the Fourth Proportional to 324,140.60, 485,822.10 and 166,287.80

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Solution

The fourth proportional to 324,140.60, 485,822.10 and 166,287.80 is: 249,232.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,140.60 : 485,822.10 = 166,287.80 : x
  2. Step 2: Convert to fraction form
    324,140.60/485,822.10 = 166,287.80/x
  3. Step 3: Cross multiply
    324,140.60x = 485,822.10 × 166,287.80
  4. Step 4: Simplify right side
    324,140.60x = 80,786,288,200.38
  5. Step 5: Solve for x
    x = 80,786,288,200.38/324,140.60
  6. Step 6: Final answer
    x = 249,232.24

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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.