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Finding the Fourth Proportional to 269,418.15, 404,002.89 and 79,810.11

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Solution

The fourth proportional to 269,418.15, 404,002.89 and 79,810.11 is: 119,678.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,418.15 : 404,002.89 = 79,810.11 : x
  2. Step 2: Convert to fraction form
    269,418.15/404,002.89 = 79,810.11/x
  3. Step 3: Cross multiply
    269,418.15x = 404,002.89 × 79,810.11
  4. Step 4: Simplify right side
    269,418.15x = 32,243,515,091.22
  5. Step 5: Solve for x
    x = 32,243,515,091.22/269,418.15
  6. Step 6: Final answer
    x = 119,678.33

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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.