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Finding the Fourth Proportional to 545.53, 818.20 and 180.32

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Solution

The fourth proportional to 545.53, 818.20 and 180.32 is: 270.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.53 : 818.20 = 180.32 : x
  2. Step 2: Convert to fraction form
    545.53/818.20 = 180.32/x
  3. Step 3: Cross multiply
    545.53x = 818.20 × 180.32
  4. Step 4: Simplify right side
    545.53x = 147,537.82
  5. Step 5: Solve for x
    x = 147,537.82/545.53
  6. Step 6: Final answer
    x = 270.45

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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.