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Finding the Fourth Proportional to 203,855.80, 305,783.70 and 174,331.30

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Solution

The fourth proportional to 203,855.80, 305,783.70 and 174,331.30 is: 261,496.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,855.80 : 305,783.70 = 174,331.30 : x
  2. Step 2: Convert to fraction form
    203,855.80/305,783.70 = 174,331.30/x
  3. Step 3: Cross multiply
    203,855.80x = 305,783.70 × 174,331.30
  4. Step 4: Simplify right side
    203,855.80x = 53,307,669,939.81
  5. Step 5: Solve for x
    x = 53,307,669,939.81/203,855.80
  6. Step 6: Final answer
    x = 261,496.95

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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.