Home / 397,122.94-548,033.25-215,835.31

Finding the Fourth Proportional to 397,122.94, 548,033.25 and 215,835.31

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Solution

The fourth proportional to 397,122.94, 548,033.25 and 215,835.31 is: 297,854.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,122.94 : 548,033.25 = 215,835.31 : x
  2. Step 2: Convert to fraction form
    397,122.94/548,033.25 = 215,835.31/x
  3. Step 3: Cross multiply
    397,122.94x = 548,033.25 × 215,835.31
  4. Step 4: Simplify right side
    397,122.94x = 118,284,923,663.89
  5. Step 5: Solve for x
    x = 118,284,923,663.89/397,122.94
  6. Step 6: Final answer
    x = 297,854.68

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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.