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Finding the Fourth Proportional to 551, 760.34 and 323.95

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Solution

The fourth proportional to 551, 760.34 and 323.95 is: 447.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    551 : 760.34 = 323.95 : x
  2. Step 2: Convert to fraction form
    551/760.34 = 323.95/x
  3. Step 3: Cross multiply
    551x = 760.34 × 323.95
  4. Step 4: Simplify right side
    551x = 246,312.14
  5. Step 5: Solve for x
    x = 246,312.14/551
  6. Step 6: Final answer
    x = 447.03

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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.