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Finding the Fourth Proportional to 254,893.88, 351,746.12 and 140,172.41

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Solution

The fourth proportional to 254,893.88, 351,746.12 and 140,172.41 is: 193,433.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,893.88 : 351,746.12 = 140,172.41 : x
  2. Step 2: Convert to fraction form
    254,893.88/351,746.12 = 140,172.41/x
  3. Step 3: Cross multiply
    254,893.88x = 351,746.12 × 140,172.41
  4. Step 4: Simplify right side
    254,893.88x = 49,305,102,578.35
  5. Step 5: Solve for x
    x = 49,305,102,578.35/254,893.88
  6. Step 6: Final answer
    x = 193,433.84

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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.