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Finding the Fourth Proportional to 532.31, 734.40 and 335.75

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Solution

The fourth proportional to 532.31, 734.40 and 335.75 is: 463.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.31 : 734.40 = 335.75 : x
  2. Step 2: Convert to fraction form
    532.31/734.40 = 335.75/x
  3. Step 3: Cross multiply
    532.31x = 734.40 × 335.75
  4. Step 4: Simplify right side
    532.31x = 246,571.13
  5. Step 5: Solve for x
    x = 246,571.13/532.31
  6. Step 6: Final answer
    x = 463.21

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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.