Home / 393,025.13-589,662.30-140,300.20

Finding the Fourth Proportional to 393,025.13, 589,662.30 and 140,300.20

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Solution

The fourth proportional to 393,025.13, 589,662.30 and 140,300.20 is: 210,494.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,025.13 : 589,662.30 = 140,300.20 : x
  2. Step 2: Convert to fraction form
    393,025.13/589,662.30 = 140,300.20/x
  3. Step 3: Cross multiply
    393,025.13x = 589,662.30 × 140,300.20
  4. Step 4: Simplify right side
    393,025.13x = 82,729,738,622.46
  5. Step 5: Solve for x
    x = 82,729,738,622.46/393,025.13
  6. Step 6: Final answer
    x = 210,494.78

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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.