Home / 397,042.21-547,917.83-215,753.71

Finding the Fourth Proportional to 397,042.21, 547,917.83 and 215,753.71

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Solution

The fourth proportional to 397,042.21, 547,917.83 and 215,753.71 is: 297,739.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,042.21 : 547,917.83 = 215,753.71 : x
  2. Step 2: Convert to fraction form
    397,042.21/547,917.83 = 215,753.71/x
  3. Step 3: Cross multiply
    397,042.21x = 547,917.83 × 215,753.71
  4. Step 4: Simplify right side
    397,042.21x = 118,215,304,597.65
  5. Step 5: Solve for x
    x = 118,215,304,597.65/397,042.21
  6. Step 6: Final answer
    x = 297,739.89

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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.