Home / 392,318.40-541,394.28-231,180.24

Finding the Fourth Proportional to 392,318.40, 541,394.28 and 231,180.24

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Solution

The fourth proportional to 392,318.40, 541,394.28 and 231,180.24 is: 319,025.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,318.40 : 541,394.28 = 231,180.24 : x
  2. Step 2: Convert to fraction form
    392,318.40/541,394.28 = 231,180.24/x
  3. Step 3: Cross multiply
    392,318.40x = 541,394.28 × 231,180.24
  4. Step 4: Simplify right side
    392,318.40x = 125,159,659,585.03
  5. Step 5: Solve for x
    x = 125,159,659,585.03/392,318.40
  6. Step 6: Final answer
    x = 319,025.72

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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.