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Finding the Fourth Proportional to 440.82, 608.61 and 283.52

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Solution

The fourth proportional to 440.82, 608.61 and 283.52 is: 391.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.82 : 608.61 = 283.52 : x
  2. Step 2: Convert to fraction form
    440.82/608.61 = 283.52/x
  3. Step 3: Cross multiply
    440.82x = 608.61 × 283.52
  4. Step 4: Simplify right side
    440.82x = 172,553.11
  5. Step 5: Solve for x
    x = 172,553.11/440.82
  6. Step 6: Final answer
    x = 391.44

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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.