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Finding the Fourth Proportional to 531.82, 733.94 and 400.60

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Solution

The fourth proportional to 531.82, 733.94 and 400.60 is: 552.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.82 : 733.94 = 400.60 : x
  2. Step 2: Convert to fraction form
    531.82/733.94 = 400.60/x
  3. Step 3: Cross multiply
    531.82x = 733.94 × 400.60
  4. Step 4: Simplify right side
    531.82x = 294,014.91
  5. Step 5: Solve for x
    x = 294,014.91/531.82
  6. Step 6: Final answer
    x = 552.85

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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.