Home / 405,135.66-559,084.92-223,847.64

Finding the Fourth Proportional to 405,135.66, 559,084.92 and 223,847.64

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Solution

The fourth proportional to 405,135.66, 559,084.92 and 223,847.64 is: 308,908.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,135.66 : 559,084.92 = 223,847.64 : x
  2. Step 2: Convert to fraction form
    405,135.66/559,084.92 = 223,847.64/x
  3. Step 3: Cross multiply
    405,135.66x = 559,084.92 × 223,847.64
  4. Step 4: Simplify right side
    405,135.66x = 125,149,839,901.59
  5. Step 5: Solve for x
    x = 125,149,839,901.59/405,135.66
  6. Step 6: Final answer
    x = 308,908.48

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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.