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Finding the Fourth Proportional to 349.96, 525 and 228.28

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Solution

The fourth proportional to 349.96, 525 and 228.28 is: 342.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.96 : 525 = 228.28 : x
  2. Step 2: Convert to fraction form
    349.96/525 = 228.28/x
  3. Step 3: Cross multiply
    349.96x = 525 × 228.28
  4. Step 4: Simplify right side
    349.96x = 119,847
  5. Step 5: Solve for x
    x = 119,847/349.96
  6. Step 6: Final answer
    x = 342.46

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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.