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Finding the Fourth Proportional to 446.73, 615.55 and 380.10

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Solution

The fourth proportional to 446.73, 615.55 and 380.10 is: 523.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    446.73 : 615.55 = 380.10 : x
  2. Step 2: Convert to fraction form
    446.73/615.55 = 380.10/x
  3. Step 3: Cross multiply
    446.73x = 615.55 × 380.10
  4. Step 4: Simplify right side
    446.73x = 233,970.56
  5. Step 5: Solve for x
    x = 233,970.56/446.73
  6. Step 6: Final answer
    x = 523.74

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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.