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Finding the Fourth Proportional to 551.52, 822.60 and 541.80

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Solution

The fourth proportional to 551.52, 822.60 and 541.80 is: 808.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.52 : 822.60 = 541.80 : x
  2. Step 2: Convert to fraction form
    551.52/822.60 = 541.80/x
  3. Step 3: Cross multiply
    551.52x = 822.60 × 541.80
  4. Step 4: Simplify right side
    551.52x = 445,684.68
  5. Step 5: Solve for x
    x = 445,684.68/551.52
  6. Step 6: Final answer
    x = 808.10

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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.