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Finding the Fourth Proportional to 199,940.80, 299,944.80 and 59,713.60

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Solution

The fourth proportional to 199,940.80, 299,944.80 and 59,713.60 is: 89,580.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,940.80 : 299,944.80 = 59,713.60 : x
  2. Step 2: Convert to fraction form
    199,940.80/299,944.80 = 59,713.60/x
  3. Step 3: Cross multiply
    199,940.80x = 299,944.80 × 59,713.60
  4. Step 4: Simplify right side
    199,940.80x = 17,910,783,809.28
  5. Step 5: Solve for x
    x = 17,910,783,809.28/199,940.80
  6. Step 6: Final answer
    x = 89,580.43

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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.