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Finding the Fourth Proportional to 447.03, 616.28 and 299.34

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Solution

The fourth proportional to 447.03, 616.28 and 299.34 is: 412.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.03 : 616.28 = 299.34 : x
  2. Step 2: Convert to fraction form
    447.03/616.28 = 299.34/x
  3. Step 3: Cross multiply
    447.03x = 616.28 × 299.34
  4. Step 4: Simplify right side
    447.03x = 184,475.76
  5. Step 5: Solve for x
    x = 184,475.76/447.03
  6. Step 6: Final answer
    x = 412.67

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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.