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Finding the Fourth Proportional to 239,741.98, 359,671.39 and 79,817.60

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Solution

The fourth proportional to 239,741.98, 359,671.39 and 79,817.60 is: 119,745.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,741.98 : 359,671.39 = 79,817.60 : x
  2. Step 2: Convert to fraction form
    239,741.98/359,671.39 = 79,817.60/x
  3. Step 3: Cross multiply
    239,741.98x = 359,671.39 × 79,817.60
  4. Step 4: Simplify right side
    239,741.98x = 28,708,107,838.10
  5. Step 5: Solve for x
    x = 28,708,107,838.10/239,741.98
  6. Step 6: Final answer
    x = 119,745.85

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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.