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Finding the Fourth Proportional to 605.30, 908.30 and 400.46

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Solution

The fourth proportional to 605.30, 908.30 and 400.46 is: 600.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.30 : 908.30 = 400.46 : x
  2. Step 2: Convert to fraction form
    605.30/908.30 = 400.46/x
  3. Step 3: Cross multiply
    605.30x = 908.30 × 400.46
  4. Step 4: Simplify right side
    605.30x = 363,734.28
  5. Step 5: Solve for x
    x = 363,734.28/605.30
  6. Step 6: Final answer
    x = 600.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.