Home / 378,634.24-522,517.04-208,868.36

Finding the Fourth Proportional to 378,634.24, 522,517.04 and 208,868.36

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Solution

The fourth proportional to 378,634.24, 522,517.04 and 208,868.36 is: 288,239.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,634.24 : 522,517.04 = 208,868.36 : x
  2. Step 2: Convert to fraction form
    378,634.24/522,517.04 = 208,868.36/x
  3. Step 3: Cross multiply
    378,634.24x = 522,517.04 × 208,868.36
  4. Step 4: Simplify right side
    378,634.24x = 109,137,277,216.85
  5. Step 5: Solve for x
    x = 109,137,277,216.85/378,634.24
  6. Step 6: Final answer
    x = 288,239.32

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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.