Home / 397,356.06-548,217.17-225,255.57

Finding the Fourth Proportional to 397,356.06, 548,217.17 and 225,255.57

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Solution

The fourth proportional to 397,356.06, 548,217.17 and 225,255.57 is: 310,776.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,356.06 : 548,217.17 = 225,255.57 : x
  2. Step 2: Convert to fraction form
    397,356.06/548,217.17 = 225,255.57/x
  3. Step 3: Cross multiply
    397,356.06x = 548,217.17 × 225,255.57
  4. Step 4: Simplify right side
    397,356.06x = 123,488,969,985.86
  5. Step 5: Solve for x
    x = 123,488,969,985.86/397,356.06
  6. Step 6: Final answer
    x = 310,776.61

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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.