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Finding the Fourth Proportional to 366.12, 547.80 and 203.91

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Solution

The fourth proportional to 366.12, 547.80 and 203.91 is: 305.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.12 : 547.80 = 203.91 : x
  2. Step 2: Convert to fraction form
    366.12/547.80 = 203.91/x
  3. Step 3: Cross multiply
    366.12x = 547.80 × 203.91
  4. Step 4: Simplify right side
    366.12x = 111,701.90
  5. Step 5: Solve for x
    x = 111,701.90/366.12
  6. Step 6: Final answer
    x = 305.10

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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.