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Finding the Fourth Proportional to 264.77, 394.98 and 234.39

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Solution

The fourth proportional to 264.77, 394.98 and 234.39 is: 349.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.77 : 394.98 = 234.39 : x
  2. Step 2: Convert to fraction form
    264.77/394.98 = 234.39/x
  3. Step 3: Cross multiply
    264.77x = 394.98 × 234.39
  4. Step 4: Simplify right side
    264.77x = 92,579.96
  5. Step 5: Solve for x
    x = 92,579.96/264.77
  6. Step 6: Final answer
    x = 349.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.