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Finding the Fourth Proportional to 433.23, 649.30 and 235.56

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Solution

The fourth proportional to 433.23, 649.30 and 235.56 is: 353.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    433.23 : 649.30 = 235.56 : x
  2. Step 2: Convert to fraction form
    433.23/649.30 = 235.56/x
  3. Step 3: Cross multiply
    433.23x = 649.30 × 235.56
  4. Step 4: Simplify right side
    433.23x = 152,949.11
  5. Step 5: Solve for x
    x = 152,949.11/433.23
  6. Step 6: Final answer
    x = 353.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.