Home / 250,140,105.22-345,193,377.96-138,638,144.70

Finding the Fourth Proportional to 250,140,105.22, 345,193,377.96 and 138,638,144.70

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Solution

The fourth proportional to 250,140,105.22, 345,193,377.96 and 138,638,144.70 is: 191,320,657.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,140,105.22 : 345,193,377.96 = 138,638,144.70 : x
  2. Step 2: Convert to fraction form
    250,140,105.22/345,193,377.96 = 138,638,144.70/x
  3. Step 3: Cross multiply
    250,140,105.22x = 345,193,377.96 × 138,638,144.70
  4. Step 4: Simplify right side
    250,140,105.22x = 47,856,969,483,100,264
  5. Step 5: Solve for x
    x = 47,856,969,483,100,264/250,140,105.22
  6. Step 6: Final answer
    x = 191,320,657.84

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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.