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Finding the Fourth Proportional to 238,662.05, 358,001.72 and 80,905.73

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Solution

The fourth proportional to 238,662.05, 358,001.72 and 80,905.73 is: 121,361.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,662.05 : 358,001.72 = 80,905.73 : x
  2. Step 2: Convert to fraction form
    238,662.05/358,001.72 = 80,905.73/x
  3. Step 3: Cross multiply
    238,662.05x = 358,001.72 × 80,905.73
  4. Step 4: Simplify right side
    238,662.05x = 28,964,390,093.33
  5. Step 5: Solve for x
    x = 28,964,390,093.33/238,662.05
  6. Step 6: Final answer
    x = 121,361.52

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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.