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Finding the Fourth Proportional to 608.74, 913.27 and 243.54

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Solution

The fourth proportional to 608.74, 913.27 and 243.54 is: 365.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.74 : 913.27 = 243.54 : x
  2. Step 2: Convert to fraction form
    608.74/913.27 = 243.54/x
  3. Step 3: Cross multiply
    608.74x = 913.27 × 243.54
  4. Step 4: Simplify right side
    608.74x = 222,417.78
  5. Step 5: Solve for x
    x = 222,417.78/608.74
  6. Step 6: Final answer
    x = 365.37

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Double scale
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Similar ratio
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1.5x scale

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.