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Finding the Fourth Proportional to 363.98, 545.97 and 90.06

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Solution

The fourth proportional to 363.98, 545.97 and 90.06 is: 135.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.98 : 545.97 = 90.06 : x
  2. Step 2: Convert to fraction form
    363.98/545.97 = 90.06/x
  3. Step 3: Cross multiply
    363.98x = 545.97 × 90.06
  4. Step 4: Simplify right side
    363.98x = 49,170.06
  5. Step 5: Solve for x
    x = 49,170.06/363.98
  6. Step 6: Final answer
    x = 135.09

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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.