Home / 405,161.18-559,120.29-223,885.61

Finding the Fourth Proportional to 405,161.18, 559,120.29 and 223,885.61

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Solution

The fourth proportional to 405,161.18, 559,120.29 and 223,885.61 is: 308,960.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,161.18 : 559,120.29 = 223,885.61 : x
  2. Step 2: Convert to fraction form
    405,161.18/559,120.29 = 223,885.61/x
  3. Step 3: Cross multiply
    405,161.18x = 559,120.29 × 223,885.61
  4. Step 4: Simplify right side
    405,161.18x = 125,178,987,190.03
  5. Step 5: Solve for x
    x = 125,178,987,190.03/405,161.18
  6. Step 6: Final answer
    x = 308,960.96

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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.