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Finding the Fourth Proportional to 608.75, 913.13 and 152.75

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Solution

The fourth proportional to 608.75, 913.13 and 152.75 is: 229.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.75 : 913.13 = 152.75 : x
  2. Step 2: Convert to fraction form
    608.75/913.13 = 152.75/x
  3. Step 3: Cross multiply
    608.75x = 913.13 × 152.75
  4. Step 4: Simplify right side
    608.75x = 139,480.61
  5. Step 5: Solve for x
    x = 139,480.61/608.75
  6. Step 6: Final answer
    x = 229.13

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Double scale
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Similar ratio
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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.