Home / 269,928.12-405,141.26-136,901.80

Finding the Fourth Proportional to 269,928.12, 405,141.26 and 136,901.80

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Solution

The fourth proportional to 269,928.12, 405,141.26 and 136,901.80 is: 205,479.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,928.12 : 405,141.26 = 136,901.80 : x
  2. Step 2: Convert to fraction form
    269,928.12/405,141.26 = 136,901.80/x
  3. Step 3: Cross multiply
    269,928.12x = 405,141.26 × 136,901.80
  4. Step 4: Simplify right side
    269,928.12x = 55,464,567,748.27
  5. Step 5: Solve for x
    x = 55,464,567,748.27/269,928.12
  6. Step 6: Final answer
    x = 205,479.03

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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.