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Finding the Fourth Proportional to 206,808.04, 310,304.22 and 108,289

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Solution

The fourth proportional to 206,808.04, 310,304.22 and 108,289 is: 162,481.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,808.04 : 310,304.22 = 108,289 : x
  2. Step 2: Convert to fraction form
    206,808.04/310,304.22 = 108,289/x
  3. Step 3: Cross multiply
    206,808.04x = 310,304.22 × 108,289
  4. Step 4: Simplify right side
    206,808.04x = 33,602,533,679.58
  5. Step 5: Solve for x
    x = 33,602,533,679.58/206,808.04
  6. Step 6: Final answer
    x = 162,481.76

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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.