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Finding the Fourth Proportional to 615.34, 923.40 and 323.10

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Solution

The fourth proportional to 615.34, 923.40 and 323.10 is: 484.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.34 : 923.40 = 323.10 : x
  2. Step 2: Convert to fraction form
    615.34/923.40 = 323.10/x
  3. Step 3: Cross multiply
    615.34x = 923.40 × 323.10
  4. Step 4: Simplify right side
    615.34x = 298,350.54
  5. Step 5: Solve for x
    x = 298,350.54/615.34
  6. Step 6: Final answer
    x = 484.85

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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.