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Finding the Fourth Proportional to 484.66, 669.07 and 328.11

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Solution

The fourth proportional to 484.66, 669.07 and 328.11 is: 452.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.66 : 669.07 = 328.11 : x
  2. Step 2: Convert to fraction form
    484.66/669.07 = 328.11/x
  3. Step 3: Cross multiply
    484.66x = 669.07 × 328.11
  4. Step 4: Simplify right side
    484.66x = 219,531.62
  5. Step 5: Solve for x
    x = 219,531.62/484.66
  6. Step 6: Final answer
    x = 452.96

Related Problems

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Double scale
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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.