Home / 401,028.45-553,382.45-231,229.77

Finding the Fourth Proportional to 401,028.45, 553,382.45 and 231,229.77

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Solution

The fourth proportional to 401,028.45, 553,382.45 and 231,229.77 is: 319,075.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,028.45 : 553,382.45 = 231,229.77 : x
  2. Step 2: Convert to fraction form
    401,028.45/553,382.45 = 231,229.77/x
  3. Step 3: Cross multiply
    401,028.45x = 553,382.45 × 231,229.77
  4. Step 4: Simplify right side
    401,028.45x = 127,958,494,446.70
  5. Step 5: Solve for x
    x = 127,958,494,446.70/401,028.45
  6. Step 6: Final answer
    x = 319,075.86

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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.