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Finding the Fourth Proportional to 291,481.19, 437,221.78 and 113,863.64

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Solution

The fourth proportional to 291,481.19, 437,221.78 and 113,863.64 is: 170,795.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,481.19 : 437,221.78 = 113,863.64 : x
  2. Step 2: Convert to fraction form
    291,481.19/437,221.78 = 113,863.64/x
  3. Step 3: Cross multiply
    291,481.19x = 437,221.78 × 113,863.64
  4. Step 4: Simplify right side
    291,481.19x = 49,783,663,987.17
  5. Step 5: Solve for x
    x = 49,783,663,987.17/291,481.19
  6. Step 6: Final answer
    x = 170,795.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.