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Finding the Fourth Proportional to 541.31, 811.96 and 194.74

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Solution

The fourth proportional to 541.31, 811.96 and 194.74 is: 292.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.31 : 811.96 = 194.74 : x
  2. Step 2: Convert to fraction form
    541.31/811.96 = 194.74/x
  3. Step 3: Cross multiply
    541.31x = 811.96 × 194.74
  4. Step 4: Simplify right side
    541.31x = 158,118.57
  5. Step 5: Solve for x
    x = 158,118.57/541.31
  6. Step 6: Final answer
    x = 292.11

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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.