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Finding the Fourth Proportional to 567.78, 850.92 and 551.16

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Solution

The fourth proportional to 567.78, 850.92 and 551.16 is: 826.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.78 : 850.92 = 551.16 : x
  2. Step 2: Convert to fraction form
    567.78/850.92 = 551.16/x
  3. Step 3: Cross multiply
    567.78x = 850.92 × 551.16
  4. Step 4: Simplify right side
    567.78x = 468,993.07
  5. Step 5: Solve for x
    x = 468,993.07/567.78
  6. Step 6: Final answer
    x = 826.01

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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.