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Finding the Fourth Proportional to 534.69, 801.66 and 274.18

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Solution

The fourth proportional to 534.69, 801.66 and 274.18 is: 411.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.69 : 801.66 = 274.18 : x
  2. Step 2: Convert to fraction form
    534.69/801.66 = 274.18/x
  3. Step 3: Cross multiply
    534.69x = 801.66 × 274.18
  4. Step 4: Simplify right side
    534.69x = 219,799.14
  5. Step 5: Solve for x
    x = 219,799.14/534.69
  6. Step 6: Final answer
    x = 411.08

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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.