Home / 420,186.40-579,835.92-229,198.24

Finding the Fourth Proportional to 420,186.40, 579,835.92 and 229,198.24

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Solution

The fourth proportional to 420,186.40, 579,835.92 and 229,198.24 is: 316,281.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,186.40 : 579,835.92 = 229,198.24 : x
  2. Step 2: Convert to fraction form
    420,186.40/579,835.92 = 229,198.24/x
  3. Step 3: Cross multiply
    420,186.40x = 579,835.92 × 229,198.24
  4. Step 4: Simplify right side
    420,186.40x = 132,897,372,352.78
  5. Step 5: Solve for x
    x = 132,897,372,352.78/420,186.40
  6. Step 6: Final answer
    x = 316,281.95

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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.