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Finding the Fourth Proportional to 334.26, 503.35 and 291.44

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Solution

The fourth proportional to 334.26, 503.35 and 291.44 is: 438.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.26 : 503.35 = 291.44 : x
  2. Step 2: Convert to fraction form
    334.26/503.35 = 291.44/x
  3. Step 3: Cross multiply
    334.26x = 503.35 × 291.44
  4. Step 4: Simplify right side
    334.26x = 146,696.85
  5. Step 5: Solve for x
    x = 146,696.85/334.26
  6. Step 6: Final answer
    x = 438.87

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.