Home / 405,147.08-559,093.78-223,859.36

Finding the Fourth Proportional to 405,147.08, 559,093.78 and 223,859.36

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Solution

The fourth proportional to 405,147.08, 559,093.78 and 223,859.36 is: 308,920.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,147.08 : 559,093.78 = 223,859.36 : x
  2. Step 2: Convert to fraction form
    405,147.08/559,093.78 = 223,859.36/x
  3. Step 3: Cross multiply
    405,147.08x = 559,093.78 × 223,859.36
  4. Step 4: Simplify right side
    405,147.08x = 125,158,375,770.78
  5. Step 5: Solve for x
    x = 125,158,375,770.78/405,147.08
  6. Step 6: Final answer
    x = 308,920.84

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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.