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Finding the Fourth Proportional to 239.02, 356.27 and 225.32

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Solution

The fourth proportional to 239.02, 356.27 and 225.32 is: 335.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.02 : 356.27 = 225.32 : x
  2. Step 2: Convert to fraction form
    239.02/356.27 = 225.32/x
  3. Step 3: Cross multiply
    239.02x = 356.27 × 225.32
  4. Step 4: Simplify right side
    239.02x = 80,271.85
  5. Step 5: Solve for x
    x = 80,271.85/239.02
  6. Step 6: Final answer
    x = 335.84

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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.