Home / 378,904.91-522,886.25-206,822.18

Finding the Fourth Proportional to 378,904.91, 522,886.25 and 206,822.18

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Solution

The fourth proportional to 378,904.91, 522,886.25 and 206,822.18 is: 285,413.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,904.91 : 522,886.25 = 206,822.18 : x
  2. Step 2: Convert to fraction form
    378,904.91/522,886.25 = 206,822.18/x
  3. Step 3: Cross multiply
    378,904.91x = 522,886.25 × 206,822.18
  4. Step 4: Simplify right side
    378,904.91x = 108,144,475,941.30
  5. Step 5: Solve for x
    x = 108,144,475,941.30/378,904.91
  6. Step 6: Final answer
    x = 285,413.24

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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.