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Finding the Fourth Proportional to 532.09, 798.32 and 326.80

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Solution

The fourth proportional to 532.09, 798.32 and 326.80 is: 490.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.09 : 798.32 = 326.80 : x
  2. Step 2: Convert to fraction form
    532.09/798.32 = 326.80/x
  3. Step 3: Cross multiply
    532.09x = 798.32 × 326.80
  4. Step 4: Simplify right side
    532.09x = 260,889.34
  5. Step 5: Solve for x
    x = 260,889.34/532.09
  6. Step 6: Final answer
    x = 490.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.