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Finding the Fourth Proportional to 269,405.36, 404,106.12 and 79,866.52

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Solution

The fourth proportional to 269,405.36, 404,106.12 and 79,866.52 is: 119,799.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,405.36 : 404,106.12 = 79,866.52 : x
  2. Step 2: Convert to fraction form
    269,405.36/404,106.12 = 79,866.52/x
  3. Step 3: Cross multiply
    269,405.36x = 404,106.12 × 79,866.52
  4. Step 4: Simplify right side
    269,405.36x = 32,274,549,515.10
  5. Step 5: Solve for x
    x = 32,274,549,515.10/269,405.36
  6. Step 6: Final answer
    x = 119,799.21

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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.