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Finding the Fourth Proportional to 496.42, 744.88 and 290.98

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Solution

The fourth proportional to 496.42, 744.88 and 290.98 is: 436.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    496.42 : 744.88 = 290.98 : x
  2. Step 2: Convert to fraction form
    496.42/744.88 = 290.98/x
  3. Step 3: Cross multiply
    496.42x = 744.88 × 290.98
  4. Step 4: Simplify right side
    496.42x = 216,745.18
  5. Step 5: Solve for x
    x = 216,745.18/496.42
  6. Step 6: Final answer
    x = 436.62

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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.