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Finding the Fourth Proportional to 547.02, 819.99 and 351.99

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Solution

The fourth proportional to 547.02, 819.99 and 351.99 is: 527.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.02 : 819.99 = 351.99 : x
  2. Step 2: Convert to fraction form
    547.02/819.99 = 351.99/x
  3. Step 3: Cross multiply
    547.02x = 819.99 × 351.99
  4. Step 4: Simplify right side
    547.02x = 288,628.28
  5. Step 5: Solve for x
    x = 288,628.28/547.02
  6. Step 6: Final answer
    x = 527.64

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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.