Home / 287,845.97-431,771.18-110,310.57

Finding the Fourth Proportional to 287,845.97, 431,771.18 and 110,310.57

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Solution

The fourth proportional to 287,845.97, 431,771.18 and 110,310.57 is: 165,466.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,845.97 : 431,771.18 = 110,310.57 : x
  2. Step 2: Convert to fraction form
    287,845.97/431,771.18 = 110,310.57/x
  3. Step 3: Cross multiply
    287,845.97x = 431,771.18 × 110,310.57
  4. Step 4: Simplify right side
    287,845.97x = 47,628,924,423.82
  5. Step 5: Solve for x
    x = 47,628,924,423.82/287,845.97
  6. Step 6: Final answer
    x = 165,466.71

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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.