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Finding the Fourth Proportional to 491.08, 736.68 and 162

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Solution

The fourth proportional to 491.08, 736.68 and 162 is: 243.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    491.08 : 736.68 = 162 : x
  2. Step 2: Convert to fraction form
    491.08/736.68 = 162/x
  3. Step 3: Cross multiply
    491.08x = 736.68 × 162
  4. Step 4: Simplify right side
    491.08x = 119,342.16
  5. Step 5: Solve for x
    x = 119,342.16/491.08
  6. Step 6: Final answer
    x = 243.02

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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.