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Finding the Fourth Proportional to 364.62, 545.96 and 287.73

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Solution

The fourth proportional to 364.62, 545.96 and 287.73 is: 430.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.62 : 545.96 = 287.73 : x
  2. Step 2: Convert to fraction form
    364.62/545.96 = 287.73/x
  3. Step 3: Cross multiply
    364.62x = 545.96 × 287.73
  4. Step 4: Simplify right side
    364.62x = 157,087.63
  5. Step 5: Solve for x
    x = 157,087.63/364.62
  6. Step 6: Final answer
    x = 430.83

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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.