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Finding the Fourth Proportional to 426.00, 587.89 and 251.35

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Solution

The fourth proportional to 426.00, 587.89 and 251.35 is: 346.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    426.00 : 587.89 = 251.35 : x
  2. Step 2: Convert to fraction form
    426.00/587.89 = 251.35/x
  3. Step 3: Cross multiply
    426.00x = 587.89 × 251.35
  4. Step 4: Simplify right side
    426.00x = 147,765.00
  5. Step 5: Solve for x
    x = 147,765.00/426.00
  6. Step 6: Final answer
    x = 346.86

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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.