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Finding the Fourth Proportional to 633.09, 873.68 and 353.32

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Solution

The fourth proportional to 633.09, 873.68 and 353.32 is: 487.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.09 : 873.68 = 353.32 : x
  2. Step 2: Convert to fraction form
    633.09/873.68 = 353.32/x
  3. Step 3: Cross multiply
    633.09x = 873.68 × 353.32
  4. Step 4: Simplify right side
    633.09x = 308,685.13
  5. Step 5: Solve for x
    x = 308,685.13/633.09
  6. Step 6: Final answer
    x = 487.58

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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.