Home / 492,207.20-738,272.40-192,629.60

Finding the Fourth Proportional to 492,207.20, 738,272.40 and 192,629.60

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Solution

The fourth proportional to 492,207.20, 738,272.40 and 192,629.60 is: 288,929.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,207.20 : 738,272.40 = 192,629.60 : x
  2. Step 2: Convert to fraction form
    492,207.20/738,272.40 = 192,629.60/x
  3. Step 3: Cross multiply
    492,207.20x = 738,272.40 × 192,629.60
  4. Step 4: Simplify right side
    492,207.20x = 142,213,117,103.04
  5. Step 5: Solve for x
    x = 142,213,117,103.04/492,207.20
  6. Step 6: Final answer
    x = 288,929.37

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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.