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Finding the Fourth Proportional to 247,361.44, 341,358.84 and 139,929.28

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Solution

The fourth proportional to 247,361.44, 341,358.84 and 139,929.28 is: 193,102.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,361.44 : 341,358.84 = 139,929.28 : x
  2. Step 2: Convert to fraction form
    247,361.44/341,358.84 = 139,929.28/x
  3. Step 3: Cross multiply
    247,361.44x = 341,358.84 × 139,929.28
  4. Step 4: Simplify right side
    247,361.44x = 47,766,096,702.84
  5. Step 5: Solve for x
    x = 47,766,096,702.84/247,361.44
  6. Step 6: Final answer
    x = 193,102.44

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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.