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Finding the Fourth Proportional to 254,503.97, 351,219.71 and 139,793.22

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Solution

The fourth proportional to 254,503.97, 351,219.71 and 139,793.22 is: 192,916.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,503.97 : 351,219.71 = 139,793.22 : x
  2. Step 2: Convert to fraction form
    254,503.97/351,219.71 = 139,793.22/x
  3. Step 3: Cross multiply
    254,503.97x = 351,219.71 × 139,793.22
  4. Step 4: Simplify right side
    254,503.97x = 49,098,134,537.85
  5. Step 5: Solve for x
    x = 49,098,134,537.85/254,503.97
  6. Step 6: Final answer
    x = 192,916.97

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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.