Home / 401,461.11-553,976.42-231,749.91

Finding the Fourth Proportional to 401,461.11, 553,976.42 and 231,749.91

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Solution

The fourth proportional to 401,461.11, 553,976.42 and 231,749.91 is: 319,791.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,461.11 : 553,976.42 = 231,749.91 : x
  2. Step 2: Convert to fraction form
    401,461.11/553,976.42 = 231,749.91/x
  3. Step 3: Cross multiply
    401,461.11x = 553,976.42 × 231,749.91
  4. Step 4: Simplify right side
    401,461.11x = 128,383,984,318.37
  5. Step 5: Solve for x
    x = 128,383,984,318.37/401,461.11
  6. Step 6: Final answer
    x = 319,791.83

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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.