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Finding the Fourth Proportional to 532.85, 798.97 and 207.84

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Solution

The fourth proportional to 532.85, 798.97 and 207.84 is: 311.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.85 : 798.97 = 207.84 : x
  2. Step 2: Convert to fraction form
    532.85/798.97 = 207.84/x
  3. Step 3: Cross multiply
    532.85x = 798.97 × 207.84
  4. Step 4: Simplify right side
    532.85x = 166,057.92
  5. Step 5: Solve for x
    x = 166,057.92/532.85
  6. Step 6: Final answer
    x = 311.64

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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.