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Finding the Fourth Proportional to 269,959.31, 405,014.05 and 118,129.34

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Solution

The fourth proportional to 269,959.31, 405,014.05 and 118,129.34 is: 177,226.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,959.31 : 405,014.05 = 118,129.34 : x
  2. Step 2: Convert to fraction form
    269,959.31/405,014.05 = 118,129.34/x
  3. Step 3: Cross multiply
    269,959.31x = 405,014.05 × 118,129.34
  4. Step 4: Simplify right side
    269,959.31x = 47,844,040,096.83
  5. Step 5: Solve for x
    x = 47,844,040,096.83/269,959.31
  6. Step 6: Final answer
    x = 177,226.86

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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.