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Finding the Fourth Proportional to 459.33, 632.97 and 328.11

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Solution

The fourth proportional to 459.33, 632.97 and 328.11 is: 452.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    459.33 : 632.97 = 328.11 : x
  2. Step 2: Convert to fraction form
    459.33/632.97 = 328.11/x
  3. Step 3: Cross multiply
    459.33x = 632.97 × 328.11
  4. Step 4: Simplify right side
    459.33x = 207,683.79
  5. Step 5: Solve for x
    x = 207,683.79/459.33
  6. Step 6: Final answer
    x = 452.15

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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.