Home / 492,091.20-738,136.80-159,667.20

Finding the Fourth Proportional to 492,091.20, 738,136.80 and 159,667.20

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Solution

The fourth proportional to 492,091.20, 738,136.80 and 159,667.20 is: 239,500.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,091.20 : 738,136.80 = 159,667.20 : x
  2. Step 2: Convert to fraction form
    492,091.20/738,136.80 = 159,667.20/x
  3. Step 3: Cross multiply
    492,091.20x = 738,136.80 × 159,667.20
  4. Step 4: Simplify right side
    492,091.20x = 117,856,236,072.96
  5. Step 5: Solve for x
    x = 117,856,236,072.96/492,091.20
  6. Step 6: Final answer
    x = 239,500.80

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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.