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Finding the Fourth Proportional to 203,481.81, 280,746.41 and 117,433.89

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Solution

The fourth proportional to 203,481.81, 280,746.41 and 117,433.89 is: 162,025.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,481.81 : 280,746.41 = 117,433.89 : x
  2. Step 2: Convert to fraction form
    203,481.81/280,746.41 = 117,433.89/x
  3. Step 3: Cross multiply
    203,481.81x = 280,746.41 × 117,433.89
  4. Step 4: Simplify right side
    203,481.81x = 32,969,142,442.67
  5. Step 5: Solve for x
    x = 32,969,142,442.67/203,481.81
  6. Step 6: Final answer
    x = 162,025.01

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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.