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Finding the Fourth Proportional to 319,601.97, 479,278.37 and 119,813.35

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Solution

The fourth proportional to 319,601.97, 479,278.37 and 119,813.35 is: 179,673.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,601.97 : 479,278.37 = 119,813.35 : x
  2. Step 2: Convert to fraction form
    319,601.97/479,278.37 = 119,813.35/x
  3. Step 3: Cross multiply
    319,601.97x = 479,278.37 × 119,813.35
  4. Step 4: Simplify right side
    319,601.97x = 57,423,944,096.78
  5. Step 5: Solve for x
    x = 57,423,944,096.78/319,601.97
  6. Step 6: Final answer
    x = 179,673.31

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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.