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Finding the Fourth Proportional to 300,196.89, 450,450.54 and 131,835.55

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Solution

The fourth proportional to 300,196.89, 450,450.54 and 131,835.55 is: 197,821.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,196.89 : 450,450.54 = 131,835.55 : x
  2. Step 2: Convert to fraction form
    300,196.89/450,450.54 = 131,835.55/x
  3. Step 3: Cross multiply
    300,196.89x = 450,450.54 × 131,835.55
  4. Step 4: Simplify right side
    300,196.89x = 59,385,394,688.70
  5. Step 5: Solve for x
    x = 59,385,394,688.70/300,196.89
  6. Step 6: Final answer
    x = 197,821.49

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1.5x scale

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.