Home / 393,236.88-589,789.68-112,688.52

Finding the Fourth Proportional to 393,236.88, 589,789.68 and 112,688.52

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Solution

The fourth proportional to 393,236.88, 589,789.68 and 112,688.52 is: 169,013.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,236.88 : 589,789.68 = 112,688.52 : x
  2. Step 2: Convert to fraction form
    393,236.88/589,789.68 = 112,688.52/x
  3. Step 3: Cross multiply
    393,236.88x = 589,789.68 × 112,688.52
  4. Step 4: Simplify right side
    393,236.88x = 66,462,526,150.47
  5. Step 5: Solve for x
    x = 66,462,526,150.47/393,236.88
  6. Step 6: Final answer
    x = 169,013.97

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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.