Home / 397,224.14-548,172.88-215,936.42

Finding the Fourth Proportional to 397,224.14, 548,172.88 and 215,936.42

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Solution

The fourth proportional to 397,224.14, 548,172.88 and 215,936.42 is: 297,994.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,224.14 : 548,172.88 = 215,936.42 : x
  2. Step 2: Convert to fraction form
    397,224.14/548,172.88 = 215,936.42/x
  3. Step 3: Cross multiply
    397,224.14x = 548,172.88 × 215,936.42
  4. Step 4: Simplify right side
    397,224.14x = 118,370,489,860.82
  5. Step 5: Solve for x
    x = 118,370,489,860.82/397,224.14
  6. Step 6: Final answer
    x = 297,994.20

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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.