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Finding the Fourth Proportional to 254,996.55, 351,893.29 and 140,272.72

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Solution

The fourth proportional to 254,996.55, 351,893.29 and 140,272.72 is: 193,575.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,996.55 : 351,893.29 = 140,272.72 : x
  2. Step 2: Convert to fraction form
    254,996.55/351,893.29 = 140,272.72/x
  3. Step 3: Cross multiply
    254,996.55x = 351,893.29 × 140,272.72
  4. Step 4: Simplify right side
    254,996.55x = 49,361,028,938.05
  5. Step 5: Solve for x
    x = 49,361,028,938.05/254,996.55
  6. Step 6: Final answer
    x = 193,575.28

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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.