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Finding the Fourth Proportional to 545.54, 818.04 and 180.21

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Solution

The fourth proportional to 545.54, 818.04 and 180.21 is: 270.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.54 : 818.04 = 180.21 : x
  2. Step 2: Convert to fraction form
    545.54/818.04 = 180.21/x
  3. Step 3: Cross multiply
    545.54x = 818.04 × 180.21
  4. Step 4: Simplify right side
    545.54x = 147,418.99
  5. Step 5: Solve for x
    x = 147,418.99/545.54
  6. Step 6: Final answer
    x = 270.23

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Double scale
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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.