Home / 393,027.13-589,665.30-140,302.20

Finding the Fourth Proportional to 393,027.13, 589,665.30 and 140,302.20

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Solution

The fourth proportional to 393,027.13, 589,665.30 and 140,302.20 is: 210,497.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,027.13 : 589,665.30 = 140,302.20 : x
  2. Step 2: Convert to fraction form
    393,027.13/589,665.30 = 140,302.20/x
  3. Step 3: Cross multiply
    393,027.13x = 589,665.30 × 140,302.20
  4. Step 4: Simplify right side
    393,027.13x = 82,731,338,853.66
  5. Step 5: Solve for x
    x = 82,731,338,853.66/393,027.13
  6. Step 6: Final answer
    x = 210,497.78

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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.