Home / 405,135.05-559,091.31-223,845.29

Finding the Fourth Proportional to 405,135.05, 559,091.31 and 223,845.29

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Solution

The fourth proportional to 405,135.05, 559,091.31 and 223,845.29 is: 308,909.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,135.05 : 559,091.31 = 223,845.29 : x
  2. Step 2: Convert to fraction form
    405,135.05/559,091.31 = 223,845.29/x
  3. Step 3: Cross multiply
    405,135.05x = 559,091.31 × 223,845.29
  4. Step 4: Simplify right side
    405,135.05x = 125,149,953,627.97
  5. Step 5: Solve for x
    x = 125,149,953,627.97/405,135.05
  6. Step 6: Final answer
    x = 308,909.23

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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.