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Finding the Fourth Proportional to 608.89, 913.38 and 262.23

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Solution

The fourth proportional to 608.89, 913.38 and 262.23 is: 393.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.89 : 913.38 = 262.23 : x
  2. Step 2: Convert to fraction form
    608.89/913.38 = 262.23/x
  3. Step 3: Cross multiply
    608.89x = 913.38 × 262.23
  4. Step 4: Simplify right side
    608.89x = 239,515.64
  5. Step 5: Solve for x
    x = 239,515.64/608.89
  6. Step 6: Final answer
    x = 393.37

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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.