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Finding the Fourth Proportional to 447.89, 619.12 and 373.77

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Solution

The fourth proportional to 447.89, 619.12 and 373.77 is: 516.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.89 : 619.12 = 373.77 : x
  2. Step 2: Convert to fraction form
    447.89/619.12 = 373.77/x
  3. Step 3: Cross multiply
    447.89x = 619.12 × 373.77
  4. Step 4: Simplify right side
    447.89x = 231,408.48
  5. Step 5: Solve for x
    x = 231,408.48/447.89
  6. Step 6: Final answer
    x = 516.66

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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.