Home / 397,231.29-548,172.73-215,947.79

Finding the Fourth Proportional to 397,231.29, 548,172.73 and 215,947.79

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Solution

The fourth proportional to 397,231.29, 548,172.73 and 215,947.79 is: 298,004.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,231.29 : 548,172.73 = 215,947.79 : x
  2. Step 2: Convert to fraction form
    397,231.29/548,172.73 = 215,947.79/x
  3. Step 3: Cross multiply
    397,231.29x = 548,172.73 × 215,947.79
  4. Step 4: Simplify right side
    397,231.29x = 118,376,689,166.49
  5. Step 5: Solve for x
    x = 118,376,689,166.49/397,231.29
  6. Step 6: Final answer
    x = 298,004.44

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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.