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Finding the Fourth Proportional to 531.92, 734.11 and 322.11

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Solution

The fourth proportional to 531.92, 734.11 and 322.11 is: 444.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.92 : 734.11 = 322.11 : x
  2. Step 2: Convert to fraction form
    531.92/734.11 = 322.11/x
  3. Step 3: Cross multiply
    531.92x = 734.11 × 322.11
  4. Step 4: Simplify right side
    531.92x = 236,463.37
  5. Step 5: Solve for x
    x = 236,463.37/531.92
  6. Step 6: Final answer
    x = 444.54

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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.