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Finding the Fourth Proportional to 263.94, 394.26 and 225.24

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Solution

The fourth proportional to 263.94, 394.26 and 225.24 is: 336.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.94 : 394.26 = 225.24 : x
  2. Step 2: Convert to fraction form
    263.94/394.26 = 225.24/x
  3. Step 3: Cross multiply
    263.94x = 394.26 × 225.24
  4. Step 4: Simplify right side
    263.94x = 88,803.12
  5. Step 5: Solve for x
    x = 88,803.12/263.94
  6. Step 6: Final answer
    x = 336.45

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.