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Finding the Fourth Proportional to 656.14, 984.27 and 331.30

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Solution

The fourth proportional to 656.14, 984.27 and 331.30 is: 496.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    656.14 : 984.27 = 331.30 : x
  2. Step 2: Convert to fraction form
    656.14/984.27 = 331.30/x
  3. Step 3: Cross multiply
    656.14x = 984.27 × 331.30
  4. Step 4: Simplify right side
    656.14x = 326,088.65
  5. Step 5: Solve for x
    x = 326,088.65/656.14
  6. Step 6: Final answer
    x = 496.98

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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.