Home / 405,198.48-559,172.52-223,905.36

Finding the Fourth Proportional to 405,198.48, 559,172.52 and 223,905.36

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Solution

The fourth proportional to 405,198.48, 559,172.52 and 223,905.36 is: 308,988.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,198.48 : 559,172.52 = 223,905.36 : x
  2. Step 2: Convert to fraction form
    405,198.48/559,172.52 = 223,905.36/x
  3. Step 3: Cross multiply
    405,198.48x = 559,172.52 × 223,905.36
  4. Step 4: Simplify right side
    405,198.48x = 125,201,724,392.71
  5. Step 5: Solve for x
    x = 125,201,724,392.71/405,198.48
  6. Step 6: Final answer
    x = 308,988.63

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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.