Home / 397,151.60-548,072.55-215,863.49

Finding the Fourth Proportional to 397,151.60, 548,072.55 and 215,863.49

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Solution

The fourth proportional to 397,151.60, 548,072.55 and 215,863.49 is: 297,893.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,151.60 : 548,072.55 = 215,863.49 : x
  2. Step 2: Convert to fraction form
    397,151.60/548,072.55 = 215,863.49/x
  3. Step 3: Cross multiply
    397,151.60x = 548,072.55 × 215,863.49
  4. Step 4: Simplify right side
    397,151.60x = 118,308,854,786.38
  5. Step 5: Solve for x
    x = 118,308,854,786.38/397,151.60
  6. Step 6: Final answer
    x = 297,893.44

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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.