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Finding the Fourth Proportional to 541.97, 812.88 and 310.11

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Solution

The fourth proportional to 541.97, 812.88 and 310.11 is: 465.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.97 : 812.88 = 310.11 : x
  2. Step 2: Convert to fraction form
    541.97/812.88 = 310.11/x
  3. Step 3: Cross multiply
    541.97x = 812.88 × 310.11
  4. Step 4: Simplify right side
    541.97x = 252,082.22
  5. Step 5: Solve for x
    x = 252,082.22/541.97
  6. Step 6: Final answer
    x = 465.12

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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.