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Finding the Fourth Proportional to 492.60, 739.04 and 168

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Solution

The fourth proportional to 492.60, 739.04 and 168 is: 252.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    492.60 : 739.04 = 168 : x
  2. Step 2: Convert to fraction form
    492.60/739.04 = 168/x
  3. Step 3: Cross multiply
    492.60x = 739.04 × 168
  4. Step 4: Simplify right side
    492.60x = 124,158.72
  5. Step 5: Solve for x
    x = 124,158.72/492.60
  6. Step 6: Final answer
    x = 252.05

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