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Finding the Fourth Proportional to 200,009.88, 276,083.15 and 115,160.76

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Solution

The fourth proportional to 200,009.88, 276,083.15 and 115,160.76 is: 158,961.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,009.88 : 276,083.15 = 115,160.76 : x
  2. Step 2: Convert to fraction form
    200,009.88/276,083.15 = 115,160.76/x
  3. Step 3: Cross multiply
    200,009.88x = 276,083.15 × 115,160.76
  4. Step 4: Simplify right side
    200,009.88x = 31,793,944,801.39
  5. Step 5: Solve for x
    x = 31,793,944,801.39/200,009.88
  6. Step 6: Final answer
    x = 158,961.87

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1.5x scale

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.