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Finding the Fourth Proportional to 496.26, 744.16 and 290.89

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Solution

The fourth proportional to 496.26, 744.16 and 290.89 is: 436.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    496.26 : 744.16 = 290.89 : x
  2. Step 2: Convert to fraction form
    496.26/744.16 = 290.89/x
  3. Step 3: Cross multiply
    496.26x = 744.16 × 290.89
  4. Step 4: Simplify right side
    496.26x = 216,468.70
  5. Step 5: Solve for x
    x = 216,468.70/496.26
  6. Step 6: Final answer
    x = 436.20

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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.