Home / 401,052.05-553,451.83-231,286.17

Finding the Fourth Proportional to 401,052.05, 553,451.83 and 231,286.17

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Solution

The fourth proportional to 401,052.05, 553,451.83 and 231,286.17 is: 319,174.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,052.05 : 553,451.83 = 231,286.17 : x
  2. Step 2: Convert to fraction form
    401,052.05/553,451.83 = 231,286.17/x
  3. Step 3: Cross multiply
    401,052.05x = 553,451.83 × 231,286.17
  4. Step 4: Simplify right side
    401,052.05x = 128,005,755,537.42
  5. Step 5: Solve for x
    x = 128,005,755,537.42/401,052.05
  6. Step 6: Final answer
    x = 319,174.92

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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.