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Finding the Fourth Proportional to 203,372.08, 280,648.72 and 117,331.32

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Solution

The fourth proportional to 203,372.08, 280,648.72 and 117,331.32 is: 161,914.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,372.08 : 280,648.72 = 117,331.32 : x
  2. Step 2: Convert to fraction form
    203,372.08/280,648.72 = 117,331.32/x
  3. Step 3: Cross multiply
    203,372.08x = 280,648.72 × 117,331.32
  4. Step 4: Simplify right side
    203,372.08x = 32,928,884,773.91
  5. Step 5: Solve for x
    x = 32,928,884,773.91/203,372.08
  6. Step 6: Final answer
    x = 161,914.48

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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.