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Finding the Fourth Proportional to 247,220.40, 371,003.40 and 107,079.60

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Solution

The fourth proportional to 247,220.40, 371,003.40 and 107,079.60 is: 160,694.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,220.40 : 371,003.40 = 107,079.60 : x
  2. Step 2: Convert to fraction form
    247,220.40/371,003.40 = 107,079.60/x
  3. Step 3: Cross multiply
    247,220.40x = 371,003.40 × 107,079.60
  4. Step 4: Simplify right side
    247,220.40x = 39,726,895,670.64
  5. Step 5: Solve for x
    x = 39,726,895,670.64/247,220.40
  6. Step 6: Final answer
    x = 160,694.25

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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.