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Finding the Fourth Proportional to 299.00, 412.37 and 228.95

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Solution

The fourth proportional to 299.00, 412.37 and 228.95 is: 315.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.00 : 412.37 = 228.95 : x
  2. Step 2: Convert to fraction form
    299.00/412.37 = 228.95/x
  3. Step 3: Cross multiply
    299.00x = 412.37 × 228.95
  4. Step 4: Simplify right side
    299.00x = 94,410.62
  5. Step 5: Solve for x
    x = 94,410.62/299.00
  6. Step 6: Final answer
    x = 315.76

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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.