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Finding the Fourth Proportional to 466.38, 699.60 and 261.05

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Solution

The fourth proportional to 466.38, 699.60 and 261.05 is: 391.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    466.38 : 699.60 = 261.05 : x
  2. Step 2: Convert to fraction form
    466.38/699.60 = 261.05/x
  3. Step 3: Cross multiply
    466.38x = 699.60 × 261.05
  4. Step 4: Simplify right side
    466.38x = 182,627.08
  5. Step 5: Solve for x
    x = 182,627.08/466.38
  6. Step 6: Final answer
    x = 391.58

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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.