Home / 397,110.29-548,012.20-215,822.65

Finding the Fourth Proportional to 397,110.29, 548,012.20 and 215,822.65

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Solution

The fourth proportional to 397,110.29, 548,012.20 and 215,822.65 is: 297,835.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,110.29 : 548,012.20 = 215,822.65 : x
  2. Step 2: Convert to fraction form
    397,110.29/548,012.20 = 215,822.65/x
  3. Step 3: Cross multiply
    397,110.29x = 548,012.20 × 215,822.65
  4. Step 4: Simplify right side
    397,110.29x = 118,273,447,576.42
  5. Step 5: Solve for x
    x = 118,273,447,576.42/397,110.29
  6. Step 6: Final answer
    x = 297,835.26

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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.