Home / 376,977.90-520,223.67-207,208.38

Finding the Fourth Proportional to 376,977.90, 520,223.67 and 207,208.38

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Solution

The fourth proportional to 376,977.90, 520,223.67 and 207,208.38 is: 285,944.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,977.90 : 520,223.67 = 207,208.38 : x
  2. Step 2: Convert to fraction form
    376,977.90/520,223.67 = 207,208.38/x
  3. Step 3: Cross multiply
    376,977.90x = 520,223.67 × 207,208.38
  4. Step 4: Simplify right side
    376,977.90x = 107,794,703,898.36
  5. Step 5: Solve for x
    x = 107,794,703,898.36/376,977.90
  6. Step 6: Final answer
    x = 285,944.36

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1.5x scale

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.