Home / 397,238.88-548,187.36-225,189.30

Finding the Fourth Proportional to 397,238.88, 548,187.36 and 225,189.30

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Solution

The fourth proportional to 397,238.88, 548,187.36 and 225,189.30 is: 310,759.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,238.88 : 548,187.36 = 225,189.30 : x
  2. Step 2: Convert to fraction form
    397,238.88/548,187.36 = 225,189.30/x
  3. Step 3: Cross multiply
    397,238.88x = 548,187.36 × 225,189.30
  4. Step 4: Simplify right side
    397,238.88x = 123,445,927,867.25
  5. Step 5: Solve for x
    x = 123,445,927,867.25/397,238.88
  6. Step 6: Final answer
    x = 310,759.93

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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.