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Finding the Fourth Proportional to 435.65, 601.17 and 261.09

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Solution

The fourth proportional to 435.65, 601.17 and 261.09 is: 360.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.65 : 601.17 = 261.09 : x
  2. Step 2: Convert to fraction form
    435.65/601.17 = 261.09/x
  3. Step 3: Cross multiply
    435.65x = 601.17 × 261.09
  4. Step 4: Simplify right side
    435.65x = 156,959.48
  5. Step 5: Solve for x
    x = 156,959.48/435.65
  6. Step 6: Final answer
    x = 360.29

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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.