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Finding the Fourth Proportional to 383,611.80, 576,073.80 and 251,079.60

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Solution

The fourth proportional to 383,611.80, 576,073.80 and 251,079.60 is: 377,048.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,611.80 : 576,073.80 = 251,079.60 : x
  2. Step 2: Convert to fraction form
    383,611.80/576,073.80 = 251,079.60/x
  3. Step 3: Cross multiply
    383,611.80x = 576,073.80 × 251,079.60
  4. Step 4: Simplify right side
    383,611.80x = 144,640,379,274.48
  5. Step 5: Solve for x
    x = 144,640,379,274.48/383,611.80
  6. Step 6: Final answer
    x = 377,048.83

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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.