Home / 401,791.07-554,434.97-238,419.36

Finding the Fourth Proportional to 401,791.07, 554,434.97 and 238,419.36

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Solution

The fourth proportional to 401,791.07, 554,434.97 and 238,419.36 is: 328,996.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,791.07 : 554,434.97 = 238,419.36 : x
  2. Step 2: Convert to fraction form
    401,791.07/554,434.97 = 238,419.36/x
  3. Step 3: Cross multiply
    401,791.07x = 554,434.97 × 238,419.36
  4. Step 4: Simplify right side
    401,791.07x = 132,188,029,516.92
  5. Step 5: Solve for x
    x = 132,188,029,516.92/401,791.07
  6. Step 6: Final answer
    x = 328,996.94

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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.