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Finding the Fourth Proportional to 352.30, 486.35 and 228.06

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Solution

The fourth proportional to 352.30, 486.35 and 228.06 is: 314.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.30 : 486.35 = 228.06 : x
  2. Step 2: Convert to fraction form
    352.30/486.35 = 228.06/x
  3. Step 3: Cross multiply
    352.30x = 486.35 × 228.06
  4. Step 4: Simplify right side
    352.30x = 110,916.98
  5. Step 5: Solve for x
    x = 110,916.98/352.30
  6. Step 6: Final answer
    x = 314.84

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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.