Home / 201,643.20-302,464.80-192,785.85

Finding the Fourth Proportional to 201,643.20, 302,464.80 and 192,785.85

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Solution

The fourth proportional to 201,643.20, 302,464.80 and 192,785.85 is: 289,178.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,643.20 : 302,464.80 = 192,785.85 : x
  2. Step 2: Convert to fraction form
    201,643.20/302,464.80 = 192,785.85/x
  3. Step 3: Cross multiply
    201,643.20x = 302,464.80 × 192,785.85
  4. Step 4: Simplify right side
    201,643.20x = 58,310,933,563.08
  5. Step 5: Solve for x
    x = 58,310,933,563.08/201,643.20
  6. Step 6: Final answer
    x = 289,178.78

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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.