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Finding the Fourth Proportional to 247,160.78, 341,093.26 and 139,735.34

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Solution

The fourth proportional to 247,160.78, 341,093.26 and 139,735.34 is: 192,841.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,160.78 : 341,093.26 = 139,735.34 : x
  2. Step 2: Convert to fraction form
    247,160.78/341,093.26 = 139,735.34/x
  3. Step 3: Cross multiply
    247,160.78x = 341,093.26 × 139,735.34
  4. Step 4: Simplify right side
    247,160.78x = 47,662,782,657.81
  5. Step 5: Solve for x
    x = 47,662,782,657.81/247,160.78
  6. Step 6: Final answer
    x = 192,841.21

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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.