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Finding the Fourth Proportional to 365.52, 551.04 and 342.03

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Solution

The fourth proportional to 365.52, 551.04 and 342.03 is: 515.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.52 : 551.04 = 342.03 : x
  2. Step 2: Convert to fraction form
    365.52/551.04 = 342.03/x
  3. Step 3: Cross multiply
    365.52x = 551.04 × 342.03
  4. Step 4: Simplify right side
    365.52x = 188,472.21
  5. Step 5: Solve for x
    x = 188,472.21/365.52
  6. Step 6: Final answer
    x = 515.63

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.