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Finding the Fourth Proportional to 352.28, 486.60 and 236

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Solution

The fourth proportional to 352.28, 486.60 and 236 is: 325.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.28 : 486.60 = 236 : x
  2. Step 2: Convert to fraction form
    352.28/486.60 = 236/x
  3. Step 3: Cross multiply
    352.28x = 486.60 × 236
  4. Step 4: Simplify right side
    352.28x = 114,837.60
  5. Step 5: Solve for x
    x = 114,837.60/352.28
  6. Step 6: Final answer
    x = 325.98

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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.