Home / 376,913.25-520,140.29-207,147.38

Finding the Fourth Proportional to 376,913.25, 520,140.29 and 207,147.38

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Solution

The fourth proportional to 376,913.25, 520,140.29 and 207,147.38 is: 285,863.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,913.25 : 520,140.29 = 207,147.38 : x
  2. Step 2: Convert to fraction form
    376,913.25/520,140.29 = 207,147.38/x
  3. Step 3: Cross multiply
    376,913.25x = 520,140.29 × 207,147.38
  4. Step 4: Simplify right side
    376,913.25x = 107,745,694,669.50
  5. Step 5: Solve for x
    x = 107,745,694,669.50/376,913.25
  6. Step 6: Final answer
    x = 285,863.38

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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.