Home / 378,606.45-522,480.23-206,525.17

Finding the Fourth Proportional to 378,606.45, 522,480.23 and 206,525.17

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Solution

The fourth proportional to 378,606.45, 522,480.23 and 206,525.17 is: 285,006.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,606.45 : 522,480.23 = 206,525.17 : x
  2. Step 2: Convert to fraction form
    378,606.45/522,480.23 = 206,525.17/x
  3. Step 3: Cross multiply
    378,606.45x = 522,480.23 × 206,525.17
  4. Step 4: Simplify right side
    378,606.45x = 107,905,318,322.39
  5. Step 5: Solve for x
    x = 107,905,318,322.39/378,606.45
  6. Step 6: Final answer
    x = 285,006.55

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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.