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Finding the Fourth Proportional to 270,175.88, 405,256.84 and 87,805.66

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Solution

The fourth proportional to 270,175.88, 405,256.84 and 87,805.66 is: 131,706.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,175.88 : 405,256.84 = 87,805.66 : x
  2. Step 2: Convert to fraction form
    270,175.88/405,256.84 = 87,805.66/x
  3. Step 3: Cross multiply
    270,175.88x = 405,256.84 × 87,805.66
  4. Step 4: Simplify right side
    270,175.88x = 35,583,844,850.95
  5. Step 5: Solve for x
    x = 35,583,844,850.95/270,175.88
  6. Step 6: Final answer
    x = 131,706.22

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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.