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Finding the Fourth Proportional to 324,480.80, 486,801.50 and 134,884.31

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Solution

The fourth proportional to 324,480.80, 486,801.50 and 134,884.31 is: 202,359.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,480.80 : 486,801.50 = 134,884.31 : x
  2. Step 2: Convert to fraction form
    324,480.80/486,801.50 = 134,884.31/x
  3. Step 3: Cross multiply
    324,480.80x = 486,801.50 × 134,884.31
  4. Step 4: Simplify right side
    324,480.80x = 65,661,881,326.04
  5. Step 5: Solve for x
    x = 65,661,881,326.04/324,480.80
  6. Step 6: Final answer
    x = 202,359.83

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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.