Home / 398,830.24-550,387.46-217,546.06

Finding the Fourth Proportional to 398,830.24, 550,387.46 and 217,546.06

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Solution

The fourth proportional to 398,830.24, 550,387.46 and 217,546.06 is: 300,214.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,830.24 : 550,387.46 = 217,546.06 : x
  2. Step 2: Convert to fraction form
    398,830.24/550,387.46 = 217,546.06/x
  3. Step 3: Cross multiply
    398,830.24x = 550,387.46 × 217,546.06
  4. Step 4: Simplify right side
    398,830.24x = 119,734,622,372.58
  5. Step 5: Solve for x
    x = 119,734,622,372.58/398,830.24
  6. Step 6: Final answer
    x = 300,214.51

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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.