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Finding the Fourth Proportional to 319,611.41, 479,292.50 and 119,822.88

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Solution

The fourth proportional to 319,611.41, 479,292.50 and 119,822.88 is: 179,687.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,611.41 : 479,292.50 = 119,822.88 : x
  2. Step 2: Convert to fraction form
    319,611.41/479,292.50 = 119,822.88/x
  3. Step 3: Cross multiply
    319,611.41x = 479,292.50 × 119,822.88
  4. Step 4: Simplify right side
    319,611.41x = 57,430,208,011.96
  5. Step 5: Solve for x
    x = 57,430,208,011.96/319,611.41
  6. Step 6: Final answer
    x = 179,687.61

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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.