Home / 405,238.13-559,239.78-223,961.79

Finding the Fourth Proportional to 405,238.13, 559,239.78 and 223,961.79

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Solution

The fourth proportional to 405,238.13, 559,239.78 and 223,961.79 is: 309,073.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,238.13 : 559,239.78 = 223,961.79 : x
  2. Step 2: Convert to fraction form
    405,238.13/559,239.78 = 223,961.79/x
  3. Step 3: Cross multiply
    405,238.13x = 559,239.78 × 223,961.79
  4. Step 4: Simplify right side
    405,238.13x = 125,248,342,168.01
  5. Step 5: Solve for x
    x = 125,248,342,168.01/405,238.13
  6. Step 6: Final answer
    x = 309,073.44

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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.