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Finding the Fourth Proportional to 411.26, 567.54 and 322.85

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Solution

The fourth proportional to 411.26, 567.54 and 322.85 is: 445.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    411.26 : 567.54 = 322.85 : x
  2. Step 2: Convert to fraction form
    411.26/567.54 = 322.85/x
  3. Step 3: Cross multiply
    411.26x = 567.54 × 322.85
  4. Step 4: Simplify right side
    411.26x = 183,227.45
  5. Step 5: Solve for x
    x = 183,227.45/411.26
  6. Step 6: Final answer
    x = 445.53

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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.