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Finding the Fourth Proportional to 208,601.69, 312,932.37 and 64,518.62

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Solution

The fourth proportional to 208,601.69, 312,932.37 and 64,518.62 is: 96,787.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,601.69 : 312,932.37 = 64,518.62 : x
  2. Step 2: Convert to fraction form
    208,601.69/312,932.37 = 64,518.62/x
  3. Step 3: Cross multiply
    208,601.69x = 312,932.37 × 64,518.62
  4. Step 4: Simplify right side
    208,601.69x = 20,189,964,665.73
  5. Step 5: Solve for x
    x = 20,189,964,665.73/208,601.69
  6. Step 6: Final answer
    x = 96,787.16

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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.