Home / 397,042.16-547,917.76-215,753.66

Finding the Fourth Proportional to 397,042.16, 547,917.76 and 215,753.66

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Solution

The fourth proportional to 397,042.16, 547,917.76 and 215,753.66 is: 297,739.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,042.16 : 547,917.76 = 215,753.66 : x
  2. Step 2: Convert to fraction form
    397,042.16/547,917.76 = 215,753.66/x
  3. Step 3: Cross multiply
    397,042.16x = 547,917.76 × 215,753.66
  4. Step 4: Simplify right side
    397,042.16x = 118,215,262,099.00
  5. Step 5: Solve for x
    x = 118,215,262,099.00/397,042.16
  6. Step 6: Final answer
    x = 297,739.82

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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.