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Finding the Fourth Proportional to 532.75, 799.08 and 289.75

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Solution

The fourth proportional to 532.75, 799.08 and 289.75 is: 434.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.75 : 799.08 = 289.75 : x
  2. Step 2: Convert to fraction form
    532.75/799.08 = 289.75/x
  3. Step 3: Cross multiply
    532.75x = 799.08 × 289.75
  4. Step 4: Simplify right side
    532.75x = 231,533.43
  5. Step 5: Solve for x
    x = 231,533.43/532.75
  6. Step 6: Final answer
    x = 434.60

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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.