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Finding the Fourth Proportional to 254,908.73, 351,734.63 and 147,488.78

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Solution

The fourth proportional to 254,908.73, 351,734.63 and 147,488.78 is: 203,511.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,908.73 : 351,734.63 = 147,488.78 : x
  2. Step 2: Convert to fraction form
    254,908.73/351,734.63 = 147,488.78/x
  3. Step 3: Cross multiply
    254,908.73x = 351,734.63 × 147,488.78
  4. Step 4: Simplify right side
    254,908.73x = 51,876,911,604.34
  5. Step 5: Solve for x
    x = 51,876,911,604.34/254,908.73
  6. Step 6: Final answer
    x = 203,511.71

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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.