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Finding the Fourth Proportional to 551.84, 828.32 and 263.36

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Solution

The fourth proportional to 551.84, 828.32 and 263.36 is: 395.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.84 : 828.32 = 263.36 : x
  2. Step 2: Convert to fraction form
    551.84/828.32 = 263.36/x
  3. Step 3: Cross multiply
    551.84x = 828.32 × 263.36
  4. Step 4: Simplify right side
    551.84x = 218,146.36
  5. Step 5: Solve for x
    x = 218,146.36/551.84
  6. Step 6: Final answer
    x = 395.31

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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.