Home / 420,238.44-579,928.24-229,251.80

Finding the Fourth Proportional to 420,238.44, 579,928.24 and 229,251.80

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Solution

The fourth proportional to 420,238.44, 579,928.24 and 229,251.80 is: 316,367.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,238.44 : 579,928.24 = 229,251.80 : x
  2. Step 2: Convert to fraction form
    420,238.44/579,928.24 = 229,251.80/x
  3. Step 3: Cross multiply
    420,238.44x = 579,928.24 × 229,251.80
  4. Step 4: Simplify right side
    420,238.44x = 132,949,592,890.83
  5. Step 5: Solve for x
    x = 132,949,592,890.83/420,238.44
  6. Step 6: Final answer
    x = 316,367.04

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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.