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Finding the Fourth Proportional to 295.49, 442.19 and 242.81

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Solution

The fourth proportional to 295.49, 442.19 and 242.81 is: 363.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.49 : 442.19 = 242.81 : x
  2. Step 2: Convert to fraction form
    295.49/442.19 = 242.81/x
  3. Step 3: Cross multiply
    295.49x = 442.19 × 242.81
  4. Step 4: Simplify right side
    295.49x = 107,369.87
  5. Step 5: Solve for x
    x = 107,369.87/295.49
  6. Step 6: Final answer
    x = 363.37

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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.