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Finding the Fourth Proportional to 269,698.80, 404,628.72 and 80,165.52

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Solution

The fourth proportional to 269,698.80, 404,628.72 and 80,165.52 is: 120,272.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,698.80 : 404,628.72 = 80,165.52 : x
  2. Step 2: Convert to fraction form
    269,698.80/404,628.72 = 80,165.52/x
  3. Step 3: Cross multiply
    269,698.80x = 404,628.72 × 80,165.52
  4. Step 4: Simplify right side
    269,698.80x = 32,437,271,745.73
  5. Step 5: Solve for x
    x = 32,437,271,745.73/269,698.80
  6. Step 6: Final answer
    x = 120,272.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.