Home / 397,787.36-548,808.06-225,685.04

Finding the Fourth Proportional to 397,787.36, 548,808.06 and 225,685.04

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Solution

The fourth proportional to 397,787.36, 548,808.06 and 225,685.04 is: 311,366.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,787.36 : 548,808.06 = 225,685.04 : x
  2. Step 2: Convert to fraction form
    397,787.36/548,808.06 = 225,685.04/x
  3. Step 3: Cross multiply
    397,787.36x = 548,808.06 × 225,685.04
  4. Step 4: Simplify right side
    397,787.36x = 123,857,768,973.42
  5. Step 5: Solve for x
    x = 123,857,768,973.42/397,787.36
  6. Step 6: Final answer
    x = 311,366.78

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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.