Home / 223,412.20-335,357.04-90,379.42

Finding the Fourth Proportional to 223,412.20, 335,357.04 and 90,379.42

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Solution

The fourth proportional to 223,412.20, 335,357.04 and 90,379.42 is: 135,665.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,412.20 : 335,357.04 = 90,379.42 : x
  2. Step 2: Convert to fraction form
    223,412.20/335,357.04 = 90,379.42/x
  3. Step 3: Cross multiply
    223,412.20x = 335,357.04 × 90,379.42
  4. Step 4: Simplify right side
    223,412.20x = 30,309,374,768.12
  5. Step 5: Solve for x
    x = 30,309,374,768.12/223,412.20
  6. Step 6: Final answer
    x = 135,665.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.