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Finding the Fourth Proportional to 247,361.10, 371,102.40 and 69,865.80

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Solution

The fourth proportional to 247,361.10, 371,102.40 and 69,865.80 is: 104,815.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,361.10 : 371,102.40 = 69,865.80 : x
  2. Step 2: Convert to fraction form
    247,361.10/371,102.40 = 69,865.80/x
  3. Step 3: Cross multiply
    247,361.10x = 371,102.40 × 69,865.80
  4. Step 4: Simplify right side
    247,361.10x = 25,927,366,057.92
  5. Step 5: Solve for x
    x = 25,927,366,057.92/247,361.10
  6. Step 6: Final answer
    x = 104,815.86

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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.