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Finding the Fourth Proportional to 291,422.44, 436,874.31 and 113,889.07

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Solution

The fourth proportional to 291,422.44, 436,874.31 and 113,889.07 is: 170,732.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,422.44 : 436,874.31 = 113,889.07 : x
  2. Step 2: Convert to fraction form
    291,422.44/436,874.31 = 113,889.07/x
  3. Step 3: Cross multiply
    291,422.44x = 436,874.31 × 113,889.07
  4. Step 4: Simplify right side
    291,422.44x = 49,755,208,872.79
  5. Step 5: Solve for x
    x = 49,755,208,872.79/291,422.44
  6. Step 6: Final answer
    x = 170,732.25

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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.