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Finding the Fourth Proportional to 352.77, 486.98 and 234.95

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Solution

The fourth proportional to 352.77, 486.98 and 234.95 is: 324.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.77 : 486.98 = 234.95 : x
  2. Step 2: Convert to fraction form
    352.77/486.98 = 234.95/x
  3. Step 3: Cross multiply
    352.77x = 486.98 × 234.95
  4. Step 4: Simplify right side
    352.77x = 114,415.95
  5. Step 5: Solve for x
    x = 114,415.95/352.77
  6. Step 6: Final answer
    x = 324.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.