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Finding the Fourth Proportional to 262.94, 362.86 and 144.90

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Solution

The fourth proportional to 262.94, 362.86 and 144.90 is: 199.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.94 : 362.86 = 144.90 : x
  2. Step 2: Convert to fraction form
    262.94/362.86 = 144.90/x
  3. Step 3: Cross multiply
    262.94x = 362.86 × 144.90
  4. Step 4: Simplify right side
    262.94x = 52,578.05
  5. Step 5: Solve for x
    x = 52,578.05/262.94
  6. Step 6: Final answer
    x = 199.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.