Home / 414,085.20-621,214.20-236,446.80

Finding the Fourth Proportional to 414,085.20, 621,214.20 and 236,446.80

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Solution

The fourth proportional to 414,085.20, 621,214.20 and 236,446.80 is: 354,719.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,085.20 : 621,214.20 = 236,446.80 : x
  2. Step 2: Convert to fraction form
    414,085.20/621,214.20 = 236,446.80/x
  3. Step 3: Cross multiply
    414,085.20x = 621,214.20 × 236,446.80
  4. Step 4: Simplify right side
    414,085.20x = 146,884,109,704.56
  5. Step 5: Solve for x
    x = 146,884,109,704.56/414,085.20
  6. Step 6: Final answer
    x = 354,719.54

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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.