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Finding the Fourth Proportional to 269,691.91, 404,718.29 and 111,920.35

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Solution

The fourth proportional to 269,691.91, 404,718.29 and 111,920.35 is: 167,955.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,691.91 : 404,718.29 = 111,920.35 : x
  2. Step 2: Convert to fraction form
    269,691.91/404,718.29 = 111,920.35/x
  3. Step 3: Cross multiply
    269,691.91x = 404,718.29 × 111,920.35
  4. Step 4: Simplify right side
    269,691.91x = 45,296,212,108.60
  5. Step 5: Solve for x
    x = 45,296,212,108.60/269,691.91
  6. Step 6: Final answer
    x = 167,955.40

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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.