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Finding the Fourth Proportional to 364.03, 545.90 and 120.49

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Solution

The fourth proportional to 364.03, 545.90 and 120.49 is: 180.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.03 : 545.90 = 120.49 : x
  2. Step 2: Convert to fraction form
    364.03/545.90 = 120.49/x
  3. Step 3: Cross multiply
    364.03x = 545.90 × 120.49
  4. Step 4: Simplify right side
    364.03x = 65,773.52
  5. Step 5: Solve for x
    x = 65,773.52/364.03
  6. Step 6: Final answer
    x = 180.68

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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.