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Finding the Fourth Proportional to 534.78, 738.03 and 301.98

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Solution

The fourth proportional to 534.78, 738.03 and 301.98 is: 416.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.78 : 738.03 = 301.98 : x
  2. Step 2: Convert to fraction form
    534.78/738.03 = 301.98/x
  3. Step 3: Cross multiply
    534.78x = 738.03 × 301.98
  4. Step 4: Simplify right side
    534.78x = 222,870.30
  5. Step 5: Solve for x
    x = 222,870.30/534.78
  6. Step 6: Final answer
    x = 416.75

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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.