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Finding the Fourth Proportional to 446.79, 615.66 and 380.19

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Solution

The fourth proportional to 446.79, 615.66 and 380.19 is: 523.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    446.79 : 615.66 = 380.19 : x
  2. Step 2: Convert to fraction form
    446.79/615.66 = 380.19/x
  3. Step 3: Cross multiply
    446.79x = 615.66 × 380.19
  4. Step 4: Simplify right side
    446.79x = 234,067.78
  5. Step 5: Solve for x
    x = 234,067.78/446.79
  6. Step 6: Final answer
    x = 523.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.