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Finding the Fourth Proportional to 431.11, 595.20 and 332.68

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Solution

The fourth proportional to 431.11, 595.20 and 332.68 is: 459.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    431.11 : 595.20 = 332.68 : x
  2. Step 2: Convert to fraction form
    431.11/595.20 = 332.68/x
  3. Step 3: Cross multiply
    431.11x = 595.20 × 332.68
  4. Step 4: Simplify right side
    431.11x = 198,011.14
  5. Step 5: Solve for x
    x = 198,011.14/431.11
  6. Step 6: Final answer
    x = 459.31

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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.