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Finding the Fourth Proportional to 379.00, 568.35 and 147.86

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Solution

The fourth proportional to 379.00, 568.35 and 147.86 is: 221.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    379.00 : 568.35 = 147.86 : x
  2. Step 2: Convert to fraction form
    379.00/568.35 = 147.86/x
  3. Step 3: Cross multiply
    379.00x = 568.35 × 147.86
  4. Step 4: Simplify right side
    379.00x = 84,032.83
  5. Step 5: Solve for x
    x = 84,032.83/379.00
  6. Step 6: Final answer
    x = 221.72

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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.