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Finding the Fourth Proportional to 433.71, 650.16 and 385.11

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Solution

The fourth proportional to 433.71, 650.16 and 385.11 is: 577.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    433.71 : 650.16 = 385.11 : x
  2. Step 2: Convert to fraction form
    433.71/650.16 = 385.11/x
  3. Step 3: Cross multiply
    433.71x = 650.16 × 385.11
  4. Step 4: Simplify right side
    433.71x = 250,383.12
  5. Step 5: Solve for x
    x = 250,383.12/433.71
  6. Step 6: Final answer
    x = 577.31

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.