Home / 405,109.70-559,057.25-223,825.80

Finding the Fourth Proportional to 405,109.70, 559,057.25 and 223,825.80

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Solution

The fourth proportional to 405,109.70, 559,057.25 and 223,825.80 is: 308,882.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,109.70 : 559,057.25 = 223,825.80 : x
  2. Step 2: Convert to fraction form
    405,109.70/559,057.25 = 223,825.80/x
  3. Step 3: Cross multiply
    405,109.70x = 559,057.25 × 223,825.80
  4. Step 4: Simplify right side
    405,109.70x = 125,131,438,883.08
  5. Step 5: Solve for x
    x = 125,131,438,883.08/405,109.70
  6. Step 6: Final answer
    x = 308,882.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.