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Finding the Fourth Proportional to 250,879.08, 346,375.26 and 155,487

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Solution

The fourth proportional to 250,879.08, 346,375.26 and 155,487 is: 214,672.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,879.08 : 346,375.26 = 155,487 : x
  2. Step 2: Convert to fraction form
    250,879.08/346,375.26 = 155,487/x
  3. Step 3: Cross multiply
    250,879.08x = 346,375.26 × 155,487
  4. Step 4: Simplify right side
    250,879.08x = 53,856,850,051.62
  5. Step 5: Solve for x
    x = 53,856,850,051.62/250,879.08
  6. Step 6: Final answer
    x = 214,672.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.