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Finding the Fourth Proportional to 476.33, 656.37 and 351.99

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Solution

The fourth proportional to 476.33, 656.37 and 351.99 is: 485.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    476.33 : 656.37 = 351.99 : x
  2. Step 2: Convert to fraction form
    476.33/656.37 = 351.99/x
  3. Step 3: Cross multiply
    476.33x = 656.37 × 351.99
  4. Step 4: Simplify right side
    476.33x = 231,035.68
  5. Step 5: Solve for x
    x = 231,035.68/476.33
  6. Step 6: Final answer
    x = 485.04

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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.