Home / 397,370.30-548,354.31-225,299.84

Finding the Fourth Proportional to 397,370.30, 548,354.31 and 225,299.84

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Solution

The fourth proportional to 397,370.30, 548,354.31 and 225,299.84 is: 310,904.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,370.30 : 548,354.31 = 225,299.84 : x
  2. Step 2: Convert to fraction form
    397,370.30/548,354.31 = 225,299.84/x
  3. Step 3: Cross multiply
    397,370.30x = 548,354.31 × 225,299.84
  4. Step 4: Simplify right side
    397,370.30x = 123,544,135,564.54
  5. Step 5: Solve for x
    x = 123,544,135,564.54/397,370.30
  6. Step 6: Final answer
    x = 310,904.31

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1.5x scale

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.