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Finding the Fourth Proportional to 608.22, 910.35 and 551.39

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Solution

The fourth proportional to 608.22, 910.35 and 551.39 is: 825.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.22 : 910.35 = 551.39 : x
  2. Step 2: Convert to fraction form
    608.22/910.35 = 551.39/x
  3. Step 3: Cross multiply
    608.22x = 910.35 × 551.39
  4. Step 4: Simplify right side
    608.22x = 501,953.33
  5. Step 5: Solve for x
    x = 501,953.33/608.22
  6. Step 6: Final answer
    x = 825.28

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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.