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Finding the Fourth Proportional to 255,734.26, 383,333.87 and 87,195.54

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Solution

The fourth proportional to 255,734.26, 383,333.87 and 87,195.54 is: 130,702.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,734.26 : 383,333.87 = 87,195.54 : x
  2. Step 2: Convert to fraction form
    255,734.26/383,333.87 = 87,195.54/x
  3. Step 3: Cross multiply
    255,734.26x = 383,333.87 × 87,195.54
  4. Step 4: Simplify right side
    255,734.26x = 33,425,002,803.70
  5. Step 5: Solve for x
    x = 33,425,002,803.70/255,734.26
  6. Step 6: Final answer
    x = 130,702.09

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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.