Home / 287,546.03-431,520.74-119,069.27

Finding the Fourth Proportional to 287,546.03, 431,520.74 and 119,069.27

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Solution

The fourth proportional to 287,546.03, 431,520.74 and 119,069.27 is: 178,687.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,546.03 : 431,520.74 = 119,069.27 : x
  2. Step 2: Convert to fraction form
    287,546.03/431,520.74 = 119,069.27/x
  3. Step 3: Cross multiply
    287,546.03x = 431,520.74 × 119,069.27
  4. Step 4: Simplify right side
    287,546.03x = 51,380,858,906.31
  5. Step 5: Solve for x
    x = 51,380,858,906.31/287,546.03
  6. Step 6: Final answer
    x = 178,687.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.