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Finding the Fourth Proportional to 551.04, 760.46 and 326.87

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Solution

The fourth proportional to 551.04, 760.46 and 326.87 is: 451.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.04 : 760.46 = 326.87 : x
  2. Step 2: Convert to fraction form
    551.04/760.46 = 326.87/x
  3. Step 3: Cross multiply
    551.04x = 760.46 × 326.87
  4. Step 4: Simplify right side
    551.04x = 248,568.98
  5. Step 5: Solve for x
    x = 248,568.98/551.04
  6. Step 6: Final answer
    x = 451.09

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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.