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Finding the Fourth Proportional to 319,601.41, 479,277.52 and 119,812.78

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Solution

The fourth proportional to 319,601.41, 479,277.52 and 119,812.78 is: 179,672.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,601.41 : 479,277.52 = 119,812.78 : x
  2. Step 2: Convert to fraction form
    319,601.41/479,277.52 = 119,812.78/x
  3. Step 3: Cross multiply
    319,601.41x = 479,277.52 × 119,812.78
  4. Step 4: Simplify right side
    319,601.41x = 57,423,573,036.22
  5. Step 5: Solve for x
    x = 57,423,573,036.22/319,601.41
  6. Step 6: Final answer
    x = 179,672.47

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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.