Home / 392,939.58-589,638.07-165,218.71

Finding the Fourth Proportional to 392,939.58, 589,638.07 and 165,218.71

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Solution

The fourth proportional to 392,939.58, 589,638.07 and 165,218.71 is: 247,924.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,939.58 : 589,638.07 = 165,218.71 : x
  2. Step 2: Convert to fraction form
    392,939.58/589,638.07 = 165,218.71/x
  3. Step 3: Cross multiply
    392,939.58x = 589,638.07 × 165,218.71
  4. Step 4: Simplify right side
    392,939.58x = 97,419,238,825.01
  5. Step 5: Solve for x
    x = 97,419,238,825.01/392,939.58
  6. Step 6: Final answer
    x = 247,924.22

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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.