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Finding the Fourth Proportional to 590.14, 814.42 and 328.18

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Solution

The fourth proportional to 590.14, 814.42 and 328.18 is: 452.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.14 : 814.42 = 328.18 : x
  2. Step 2: Convert to fraction form
    590.14/814.42 = 328.18/x
  3. Step 3: Cross multiply
    590.14x = 814.42 × 328.18
  4. Step 4: Simplify right side
    590.14x = 267,276.36
  5. Step 5: Solve for x
    x = 267,276.36/590.14
  6. Step 6: Final answer
    x = 452.90

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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.