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Finding the Fourth Proportional to 344,627.28, 475,512.66 and 208,634.76

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Solution

The fourth proportional to 344,627.28, 475,512.66 and 208,634.76 is: 287,871.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,627.28 : 475,512.66 = 208,634.76 : x
  2. Step 2: Convert to fraction form
    344,627.28/475,512.66 = 208,634.76/x
  3. Step 3: Cross multiply
    344,627.28x = 475,512.66 × 208,634.76
  4. Step 4: Simplify right side
    344,627.28x = 99,208,469,696.06
  5. Step 5: Solve for x
    x = 99,208,469,696.06/344,627.28
  6. Step 6: Final answer
    x = 287,871.78

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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.