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Finding the Fourth Proportional to 208,066.71, 287,330.41 and 196,731.94

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Solution

The fourth proportional to 208,066.71, 287,330.41 and 196,731.94 is: 271,677.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,066.71 : 287,330.41 = 196,731.94 : x
  2. Step 2: Convert to fraction form
    208,066.71/287,330.41 = 196,731.94/x
  3. Step 3: Cross multiply
    208,066.71x = 287,330.41 × 196,731.94
  4. Step 4: Simplify right side
    208,066.71x = 56,527,068,507.88
  5. Step 5: Solve for x
    x = 56,527,068,507.88/208,066.71
  6. Step 6: Final answer
    x = 271,677.61

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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.