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Finding the Fourth Proportional to 447.79, 671.58 and 228.27

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Solution

The fourth proportional to 447.79, 671.58 and 228.27 is: 342.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.79 : 671.58 = 228.27 : x
  2. Step 2: Convert to fraction form
    447.79/671.58 = 228.27/x
  3. Step 3: Cross multiply
    447.79x = 671.58 × 228.27
  4. Step 4: Simplify right side
    447.79x = 153,301.57
  5. Step 5: Solve for x
    x = 153,301.57/447.79
  6. Step 6: Final answer
    x = 342.35

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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.