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Finding the Fourth Proportional to 319,378.67, 479,049.10 and 119,682.35

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Solution

The fourth proportional to 319,378.67, 479,049.10 and 119,682.35 is: 179,516.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,378.67 : 479,049.10 = 119,682.35 : x
  2. Step 2: Convert to fraction form
    319,378.67/479,049.10 = 119,682.35/x
  3. Step 3: Cross multiply
    319,378.67x = 479,049.10 × 119,682.35
  4. Step 4: Simplify right side
    319,378.67x = 57,333,722,053.39
  5. Step 5: Solve for x
    x = 57,333,722,053.39/319,378.67
  6. Step 6: Final answer
    x = 179,516.44

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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.