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Finding the Fourth Proportional to 534.97, 738.27 and 298.90

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Solution

The fourth proportional to 534.97, 738.27 and 298.90 is: 412.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.97 : 738.27 = 298.90 : x
  2. Step 2: Convert to fraction form
    534.97/738.27 = 298.90/x
  3. Step 3: Cross multiply
    534.97x = 738.27 × 298.90
  4. Step 4: Simplify right side
    534.97x = 220,668.90
  5. Step 5: Solve for x
    x = 220,668.90/534.97
  6. Step 6: Final answer
    x = 412.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.