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Finding the Fourth Proportional to 324,019.60, 485,640.60 and 166,166.80

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Solution

The fourth proportional to 324,019.60, 485,640.60 and 166,166.80 is: 249,050.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,019.60 : 485,640.60 = 166,166.80 : x
  2. Step 2: Convert to fraction form
    324,019.60/485,640.60 = 166,166.80/x
  3. Step 3: Cross multiply
    324,019.60x = 485,640.60 × 166,166.80
  4. Step 4: Simplify right side
    324,019.60x = 80,697,344,452.08
  5. Step 5: Solve for x
    x = 80,697,344,452.08/324,019.60
  6. Step 6: Final answer
    x = 249,050.81

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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.