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Finding the Fourth Proportional to 411.11, 567.39 and 236.45

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Solution

The fourth proportional to 411.11, 567.39 and 236.45 is: 326.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    411.11 : 567.39 = 236.45 : x
  2. Step 2: Convert to fraction form
    411.11/567.39 = 236.45/x
  3. Step 3: Cross multiply
    411.11x = 567.39 × 236.45
  4. Step 4: Simplify right side
    411.11x = 134,159.60
  5. Step 5: Solve for x
    x = 134,159.60/411.11
  6. Step 6: Final answer
    x = 326.34

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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.