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Finding the Fourth Proportional to 365.08, 547.08 and 242.90

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Solution

The fourth proportional to 365.08, 547.08 and 242.90 is: 363.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.08 : 547.08 = 242.90 : x
  2. Step 2: Convert to fraction form
    365.08/547.08 = 242.90/x
  3. Step 3: Cross multiply
    365.08x = 547.08 × 242.90
  4. Step 4: Simplify right side
    365.08x = 132,885.73
  5. Step 5: Solve for x
    x = 132,885.73/365.08
  6. Step 6: Final answer
    x = 363.99

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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.