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Finding the Fourth Proportional to 324,033.60, 485,904.60 and 124,287.60

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Solution

The fourth proportional to 324,033.60, 485,904.60 and 124,287.60 is: 186,375.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,033.60 : 485,904.60 = 124,287.60 : x
  2. Step 2: Convert to fraction form
    324,033.60/485,904.60 = 124,287.60/x
  3. Step 3: Cross multiply
    324,033.60x = 485,904.60 × 124,287.60
  4. Step 4: Simplify right side
    324,033.60x = 60,391,916,562.96
  5. Step 5: Solve for x
    x = 60,391,916,562.96/324,033.60
  6. Step 6: Final answer
    x = 186,375.48

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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.