Home / 319,370.31-479,099.21-108,951.75

Finding the Fourth Proportional to 319,370.31, 479,099.21 and 108,951.75

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Solution

The fourth proportional to 319,370.31, 479,099.21 and 108,951.75 is: 163,442.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,370.31 : 479,099.21 = 108,951.75 : x
  2. Step 2: Convert to fraction form
    319,370.31/479,099.21 = 108,951.75/x
  3. Step 3: Cross multiply
    319,370.31x = 479,099.21 × 108,951.75
  4. Step 4: Simplify right side
    319,370.31x = 52,198,696,808.36
  5. Step 5: Solve for x
    x = 52,198,696,808.36/319,370.31
  6. Step 6: Final answer
    x = 163,442.55

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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.