Home / 253,929.32-380,565.92-120,850.37

Finding the Fourth Proportional to 253,929.32, 380,565.92 and 120,850.37

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Solution

The fourth proportional to 253,929.32, 380,565.92 and 120,850.37 is: 181,119.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,929.32 : 380,565.92 = 120,850.37 : x
  2. Step 2: Convert to fraction form
    253,929.32/380,565.92 = 120,850.37/x
  3. Step 3: Cross multiply
    253,929.32x = 380,565.92 × 120,850.37
  4. Step 4: Simplify right side
    253,929.32x = 45,991,529,734.31
  5. Step 5: Solve for x
    x = 45,991,529,734.31/253,929.32
  6. Step 6: Final answer
    x = 181,119.42

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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.