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Finding the Fourth Proportional to 412.36, 569.04 and 225.86

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Solution

The fourth proportional to 412.36, 569.04 and 225.86 is: 311.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    412.36 : 569.04 = 225.86 : x
  2. Step 2: Convert to fraction form
    412.36/569.04 = 225.86/x
  3. Step 3: Cross multiply
    412.36x = 569.04 × 225.86
  4. Step 4: Simplify right side
    412.36x = 128,520.53
  5. Step 5: Solve for x
    x = 128,520.53/412.36
  6. Step 6: Final answer
    x = 311.67

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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.