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Finding the Fourth Proportional to 590.96, 886.60 and 225.74

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Solution

The fourth proportional to 590.96, 886.60 and 225.74 is: 338.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.96 : 886.60 = 225.74 : x
  2. Step 2: Convert to fraction form
    590.96/886.60 = 225.74/x
  3. Step 3: Cross multiply
    590.96x = 886.60 × 225.74
  4. Step 4: Simplify right side
    590.96x = 200,141.08
  5. Step 5: Solve for x
    x = 200,141.08/590.96
  6. Step 6: Final answer
    x = 338.67

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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.