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Finding the Fourth Proportional to 392,367.52, 541,429.72 and 220,246.04

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Solution

The fourth proportional to 392,367.52, 541,429.72 and 220,246.04 is: 303,918.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,367.52 : 541,429.72 = 220,246.04 : x
  2. Step 2: Convert to fraction form
    392,367.52/541,429.72 = 220,246.04/x
  3. Step 3: Cross multiply
    392,367.52x = 541,429.72 × 220,246.04
  4. Step 4: Simplify right side
    392,367.52x = 119,247,751,768.31
  5. Step 5: Solve for x
    x = 119,247,751,768.31/392,367.52
  6. Step 6: Final answer
    x = 303,918.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.