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Finding the Fourth Proportional to 200,143.71, 300,251.94 and 94,961.70

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Solution

The fourth proportional to 200,143.71, 300,251.94 and 94,961.70 is: 142,459.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,143.71 : 300,251.94 = 94,961.70 : x
  2. Step 2: Convert to fraction form
    200,143.71/300,251.94 = 94,961.70/x
  3. Step 3: Cross multiply
    200,143.71x = 300,251.94 × 94,961.70
  4. Step 4: Simplify right side
    200,143.71x = 28,512,434,650.70
  5. Step 5: Solve for x
    x = 28,512,434,650.70/200,143.71
  6. Step 6: Final answer
    x = 142,459.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.