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Finding the Fourth Proportional to 534.37, 801.25 and 209.56

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Solution

The fourth proportional to 534.37, 801.25 and 209.56 is: 314.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.37 : 801.25 = 209.56 : x
  2. Step 2: Convert to fraction form
    534.37/801.25 = 209.56/x
  3. Step 3: Cross multiply
    534.37x = 801.25 × 209.56
  4. Step 4: Simplify right side
    534.37x = 167,909.95
  5. Step 5: Solve for x
    x = 167,909.95/534.37
  6. Step 6: Final answer
    x = 314.22

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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.