Home / 420,151.42-579,815.89-229,164.83

Finding the Fourth Proportional to 420,151.42, 579,815.89 and 229,164.83

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Solution

The fourth proportional to 420,151.42, 579,815.89 and 229,164.83 is: 316,251.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,151.42 : 579,815.89 = 229,164.83 : x
  2. Step 2: Convert to fraction form
    420,151.42/579,815.89 = 229,164.83/x
  3. Step 3: Cross multiply
    420,151.42x = 579,815.89 × 229,164.83
  4. Step 4: Simplify right side
    420,151.42x = 132,873,408,565.47
  5. Step 5: Solve for x
    x = 132,873,408,565.47/420,151.42
  6. Step 6: Final answer
    x = 316,251.24

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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.