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Finding the Fourth Proportional to 432.11, 596.55 and 330.97

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Solution

The fourth proportional to 432.11, 596.55 and 330.97 is: 456.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    432.11 : 596.55 = 330.97 : x
  2. Step 2: Convert to fraction form
    432.11/596.55 = 330.97/x
  3. Step 3: Cross multiply
    432.11x = 596.55 × 330.97
  4. Step 4: Simplify right side
    432.11x = 197,440.15
  5. Step 5: Solve for x
    x = 197,440.15/432.11
  6. Step 6: Final answer
    x = 456.93

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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.