Home / 401,028.57-553,382.63-231,229.89

Finding the Fourth Proportional to 401,028.57, 553,382.63 and 231,229.89

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Solution

The fourth proportional to 401,028.57, 553,382.63 and 231,229.89 is: 319,076.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,028.57 : 553,382.63 = 231,229.89 : x
  2. Step 2: Convert to fraction form
    401,028.57/553,382.63 = 231,229.89/x
  3. Step 3: Cross multiply
    401,028.57x = 553,382.63 × 231,229.89
  4. Step 4: Simplify right side
    401,028.57x = 127,958,603,506.66
  5. Step 5: Solve for x
    x = 127,958,603,506.66/401,028.57
  6. Step 6: Final answer
    x = 319,076.03

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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.