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Finding the Fourth Proportional to 346.52, 518.46 and 228.96

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Solution

The fourth proportional to 346.52, 518.46 and 228.96 is: 342.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.52 : 518.46 = 228.96 : x
  2. Step 2: Convert to fraction form
    346.52/518.46 = 228.96/x
  3. Step 3: Cross multiply
    346.52x = 518.46 × 228.96
  4. Step 4: Simplify right side
    346.52x = 118,706.60
  5. Step 5: Solve for x
    x = 118,706.60/346.52
  6. Step 6: Final answer
    x = 342.57

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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.