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Finding the Fourth Proportional to 364.50, 545.38 and 226.90

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Solution

The fourth proportional to 364.50, 545.38 and 226.90 is: 339.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.50 : 545.38 = 226.90 : x
  2. Step 2: Convert to fraction form
    364.50/545.38 = 226.90/x
  3. Step 3: Cross multiply
    364.50x = 545.38 × 226.90
  4. Step 4: Simplify right side
    364.50x = 123,748.11
  5. Step 5: Solve for x
    x = 123,748.11/364.50
  6. Step 6: Final answer
    x = 339.50

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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.