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Finding the Fourth Proportional to 261.03, 359.81 and 204.92

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Solution

The fourth proportional to 261.03, 359.81 and 204.92 is: 282.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    261.03 : 359.81 = 204.92 : x
  2. Step 2: Convert to fraction form
    261.03/359.81 = 204.92/x
  3. Step 3: Cross multiply
    261.03x = 359.81 × 204.92
  4. Step 4: Simplify right side
    261.03x = 73,732.14
  5. Step 5: Solve for x
    x = 73,732.14/261.03
  6. Step 6: Final answer
    x = 282.47

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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.