Home / 405,121.22-559,078.56-223,844.83

Finding the Fourth Proportional to 405,121.22, 559,078.56 and 223,844.83

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Solution

The fourth proportional to 405,121.22, 559,078.56 and 223,844.83 is: 308,912.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,121.22 : 559,078.56 = 223,844.83 : x
  2. Step 2: Convert to fraction form
    405,121.22/559,078.56 = 223,844.83/x
  3. Step 3: Cross multiply
    405,121.22x = 559,078.56 × 223,844.83
  4. Step 4: Simplify right side
    405,121.22x = 125,146,847,596.53
  5. Step 5: Solve for x
    x = 125,146,847,596.53/405,121.22
  6. Step 6: Final answer
    x = 308,912.10

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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.