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Finding the Fourth Proportional to 445,902.31, 668,692.06 and 189,751.96

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Solution

The fourth proportional to 445,902.31, 668,692.06 and 189,751.96 is: 284,559.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,902.31 : 668,692.06 = 189,751.96 : x
  2. Step 2: Convert to fraction form
    445,902.31/668,692.06 = 189,751.96/x
  3. Step 3: Cross multiply
    445,902.31x = 668,692.06 × 189,751.96
  4. Step 4: Simplify right side
    445,902.31x = 126,885,629,021.44
  5. Step 5: Solve for x
    x = 126,885,629,021.44/445,902.31
  6. Step 6: Final answer
    x = 284,559.25

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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.