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Finding the Fourth Proportional to 297.21, 446.09 and 228.51

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Solution

The fourth proportional to 297.21, 446.09 and 228.51 is: 342.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.21 : 446.09 = 228.51 : x
  2. Step 2: Convert to fraction form
    297.21/446.09 = 228.51/x
  3. Step 3: Cross multiply
    297.21x = 446.09 × 228.51
  4. Step 4: Simplify right side
    297.21x = 101,936.03
  5. Step 5: Solve for x
    x = 101,936.03/297.21
  6. Step 6: Final answer
    x = 342.98

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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.