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Finding the Fourth Proportional to 534.51, 801.89 and 414.27

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Solution

The fourth proportional to 534.51, 801.89 and 414.27 is: 621.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.51 : 801.89 = 414.27 : x
  2. Step 2: Convert to fraction form
    534.51/801.89 = 414.27/x
  3. Step 3: Cross multiply
    534.51x = 801.89 × 414.27
  4. Step 4: Simplify right side
    534.51x = 332,196.90
  5. Step 5: Solve for x
    x = 332,196.90/534.51
  6. Step 6: Final answer
    x = 621.50

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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.