Home / 262,270.20-393,375.06-72,744.60

Finding the Fourth Proportional to 262,270.20, 393,375.06 and 72,744.60

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Solution

The fourth proportional to 262,270.20, 393,375.06 and 72,744.60 is: 109,108.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,270.20 : 393,375.06 = 72,744.60 : x
  2. Step 2: Convert to fraction form
    262,270.20/393,375.06 = 72,744.60/x
  3. Step 3: Cross multiply
    262,270.20x = 393,375.06 × 72,744.60
  4. Step 4: Simplify right side
    262,270.20x = 28,615,911,389.68
  5. Step 5: Solve for x
    x = 28,615,911,389.68/262,270.20
  6. Step 6: Final answer
    x = 109,108.51

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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.