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Finding the Fourth Proportional to 492.14, 738.31 and 400.60

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Solution

The fourth proportional to 492.14, 738.31 and 400.60 is: 600.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    492.14 : 738.31 = 400.60 : x
  2. Step 2: Convert to fraction form
    492.14/738.31 = 400.60/x
  3. Step 3: Cross multiply
    492.14x = 738.31 × 400.60
  4. Step 4: Simplify right side
    492.14x = 295,766.99
  5. Step 5: Solve for x
    x = 295,766.99/492.14
  6. Step 6: Final answer
    x = 600.98

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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.