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Finding the Fourth Proportional to 545.70, 817.94 and 271.52

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Solution

The fourth proportional to 545.70, 817.94 and 271.52 is: 406.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.70 : 817.94 = 271.52 : x
  2. Step 2: Convert to fraction form
    545.70/817.94 = 271.52/x
  3. Step 3: Cross multiply
    545.70x = 817.94 × 271.52
  4. Step 4: Simplify right side
    545.70x = 222,081.62
  5. Step 5: Solve for x
    x = 222,081.62/545.70
  6. Step 6: Final answer
    x = 406.97

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.