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Finding the Fourth Proportional to 494.96, 683.01 and 308.48

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Solution

The fourth proportional to 494.96, 683.01 and 308.48 is: 425.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    494.96 : 683.01 = 308.48 : x
  2. Step 2: Convert to fraction form
    494.96/683.01 = 308.48/x
  3. Step 3: Cross multiply
    494.96x = 683.01 × 308.48
  4. Step 4: Simplify right side
    494.96x = 210,691.51
  5. Step 5: Solve for x
    x = 210,691.51/494.96
  6. Step 6: Final answer
    x = 425.68

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.