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Finding the Fourth Proportional to 541.10, 810.95 and 216.09

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Solution

The fourth proportional to 541.10, 810.95 and 216.09 is: 323.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.10 : 810.95 = 216.09 : x
  2. Step 2: Convert to fraction form
    541.10/810.95 = 216.09/x
  3. Step 3: Cross multiply
    541.10x = 810.95 × 216.09
  4. Step 4: Simplify right side
    541.10x = 175,237.11
  5. Step 5: Solve for x
    x = 175,237.11/541.10
  6. Step 6: Final answer
    x = 323.85

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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.