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Finding the Fourth Proportional to 537.66, 805.71 and 318.33

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Solution

The fourth proportional to 537.66, 805.71 and 318.33 is: 477.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    537.66 : 805.71 = 318.33 : x
  2. Step 2: Convert to fraction form
    537.66/805.71 = 318.33/x
  3. Step 3: Cross multiply
    537.66x = 805.71 × 318.33
  4. Step 4: Simplify right side
    537.66x = 256,481.66
  5. Step 5: Solve for x
    x = 256,481.66/537.66
  6. Step 6: Final answer
    x = 477.03

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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.