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Finding the Fourth Proportional to 433.20, 598.24 and 378.52

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Solution

The fourth proportional to 433.20, 598.24 and 378.52 is: 522.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    433.20 : 598.24 = 378.52 : x
  2. Step 2: Convert to fraction form
    433.20/598.24 = 378.52/x
  3. Step 3: Cross multiply
    433.20x = 598.24 × 378.52
  4. Step 4: Simplify right side
    433.20x = 226,445.80
  5. Step 5: Solve for x
    x = 226,445.80/433.20
  6. Step 6: Final answer
    x = 522.73

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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.