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Finding the Fourth Proportional to 608.68, 913.19 and 238.51

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Solution

The fourth proportional to 608.68, 913.19 and 238.51 is: 357.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.68 : 913.19 = 238.51 : x
  2. Step 2: Convert to fraction form
    608.68/913.19 = 238.51/x
  3. Step 3: Cross multiply
    608.68x = 913.19 × 238.51
  4. Step 4: Simplify right side
    608.68x = 217,804.95
  5. Step 5: Solve for x
    x = 217,804.95/608.68
  6. Step 6: Final answer
    x = 357.83

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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.