Home / 492,238.20-738,138.60-192,619.20

Finding the Fourth Proportional to 492,238.20, 738,138.60 and 192,619.20

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Solution

The fourth proportional to 492,238.20, 738,138.60 and 192,619.20 is: 288,843.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,238.20 : 738,138.60 = 192,619.20 : x
  2. Step 2: Convert to fraction form
    492,238.20/738,138.60 = 192,619.20/x
  3. Step 3: Cross multiply
    492,238.20x = 738,138.60 × 192,619.20
  4. Step 4: Simplify right side
    492,238.20x = 142,179,666,621.12
  5. Step 5: Solve for x
    x = 142,179,666,621.12/492,238.20
  6. Step 6: Final answer
    x = 288,843.22

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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.