Home / 355,067.24-489,927.34-209,896.44

Finding the Fourth Proportional to 355,067.24, 489,927.34 and 209,896.44

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Solution

The fourth proportional to 355,067.24, 489,927.34 and 209,896.44 is: 289,618.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,067.24 : 489,927.34 = 209,896.44 : x
  2. Step 2: Convert to fraction form
    355,067.24/489,927.34 = 209,896.44/x
  3. Step 3: Cross multiply
    355,067.24x = 489,927.34 × 209,896.44
  4. Step 4: Simplify right side
    355,067.24x = 102,834,004,524.67
  5. Step 5: Solve for x
    x = 102,834,004,524.67/355,067.24
  6. Step 6: Final answer
    x = 289,618.40

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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.