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Finding the Fourth Proportional to 319,604.60, 479,282.30 and 119,815.97

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Solution

The fourth proportional to 319,604.60, 479,282.30 and 119,815.97 is: 179,677.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,604.60 : 479,282.30 = 119,815.97 : x
  2. Step 2: Convert to fraction form
    319,604.60/479,282.30 = 119,815.97/x
  3. Step 3: Cross multiply
    319,604.60x = 479,282.30 × 119,815.97
  4. Step 4: Simplify right side
    319,604.60x = 57,425,672,929.46
  5. Step 5: Solve for x
    x = 57,425,672,929.46/319,604.60
  6. Step 6: Final answer
    x = 179,677.24

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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.