Home / 401,198.32-553,616.94-231,399.64

Finding the Fourth Proportional to 401,198.32, 553,616.94 and 231,399.64

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Solution

The fourth proportional to 401,198.32, 553,616.94 and 231,399.64 is: 319,310.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,198.32 : 553,616.94 = 231,399.64 : x
  2. Step 2: Convert to fraction form
    401,198.32/553,616.94 = 231,399.64/x
  3. Step 3: Cross multiply
    401,198.32x = 553,616.94 × 231,399.64
  4. Step 4: Simplify right side
    401,198.32x = 128,106,760,613.90
  5. Step 5: Solve for x
    x = 128,106,760,613.90/401,198.32
  6. Step 6: Final answer
    x = 319,310.31

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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.