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Finding the Fourth Proportional to 261.45, 360.99 and 244.91

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Solution

The fourth proportional to 261.45, 360.99 and 244.91 is: 338.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    261.45 : 360.99 = 244.91 : x
  2. Step 2: Convert to fraction form
    261.45/360.99 = 244.91/x
  3. Step 3: Cross multiply
    261.45x = 360.99 × 244.91
  4. Step 4: Simplify right side
    261.45x = 88,408.84
  5. Step 5: Solve for x
    x = 88,408.84/261.45
  6. Step 6: Final answer
    x = 338.15

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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.