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Finding the Fourth Proportional to 545.25, 818.10 and 236.94

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Solution

The fourth proportional to 545.25, 818.10 and 236.94 is: 355.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.25 : 818.10 = 236.94 : x
  2. Step 2: Convert to fraction form
    545.25/818.10 = 236.94/x
  3. Step 3: Cross multiply
    545.25x = 818.10 × 236.94
  4. Step 4: Simplify right side
    545.25x = 193,840.61
  5. Step 5: Solve for x
    x = 193,840.61/545.25
  6. Step 6: Final answer
    x = 355.51

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Double scale
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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.