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Finding the Fourth Proportional to 369.27, 551.27 and 356.45

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Solution

The fourth proportional to 369.27, 551.27 and 356.45 is: 532.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.27 : 551.27 = 356.45 : x
  2. Step 2: Convert to fraction form
    369.27/551.27 = 356.45/x
  3. Step 3: Cross multiply
    369.27x = 551.27 × 356.45
  4. Step 4: Simplify right side
    369.27x = 196,495.65
  5. Step 5: Solve for x
    x = 196,495.65/369.27
  6. Step 6: Final answer
    x = 532.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.