Home / 376,928.26-520,139-207,162.52

Finding the Fourth Proportional to 376,928.26, 520,139 and 207,162.52

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Solution

The fourth proportional to 376,928.26, 520,139 and 207,162.52 is: 285,872.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,928.26 : 520,139 = 207,162.52 : x
  2. Step 2: Convert to fraction form
    376,928.26/520,139 = 207,162.52/x
  3. Step 3: Cross multiply
    376,928.26x = 520,139 × 207,162.52
  4. Step 4: Simplify right side
    376,928.26x = 107,753,305,990.28
  5. Step 5: Solve for x
    x = 107,753,305,990.28/376,928.26
  6. Step 6: Final answer
    x = 285,872.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.