Home / 386,939.44-580,137-150,082.48

Finding the Fourth Proportional to 386,939.44, 580,137 and 150,082.48

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Solution

The fourth proportional to 386,939.44, 580,137 and 150,082.48 is: 225,018.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,939.44 : 580,137 = 150,082.48 : x
  2. Step 2: Convert to fraction form
    386,939.44/580,137 = 150,082.48/x
  3. Step 3: Cross multiply
    386,939.44x = 580,137 × 150,082.48
  4. Step 4: Simplify right side
    386,939.44x = 87,068,399,699.76
  5. Step 5: Solve for x
    x = 87,068,399,699.76/386,939.44
  6. Step 6: Final answer
    x = 225,018.16

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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.