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Finding the Fourth Proportional to 349.82, 524.78 and 263.25

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Solution

The fourth proportional to 349.82, 524.78 and 263.25 is: 394.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.82 : 524.78 = 263.25 : x
  2. Step 2: Convert to fraction form
    349.82/524.78 = 263.25/x
  3. Step 3: Cross multiply
    349.82x = 524.78 × 263.25
  4. Step 4: Simplify right side
    349.82x = 138,148.01
  5. Step 5: Solve for x
    x = 138,148.01/349.82
  6. Step 6: Final answer
    x = 394.91

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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.