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Finding the Fourth Proportional to 545.08, 817.44 and 198.37

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Solution

The fourth proportional to 545.08, 817.44 and 198.37 is: 297.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.08 : 817.44 = 198.37 : x
  2. Step 2: Convert to fraction form
    545.08/817.44 = 198.37/x
  3. Step 3: Cross multiply
    545.08x = 817.44 × 198.37
  4. Step 4: Simplify right side
    545.08x = 162,153.53
  5. Step 5: Solve for x
    x = 162,153.53/545.08
  6. Step 6: Final answer
    x = 297.49

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Similar ratio
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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.