Home / 257,849.57-355,814.59-143,119.19

Finding the Fourth Proportional to 257,849.57, 355,814.59 and 143,119.19

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Solution

The fourth proportional to 257,849.57, 355,814.59 and 143,119.19 is: 197,494.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,849.57 : 355,814.59 = 143,119.19 : x
  2. Step 2: Convert to fraction form
    257,849.57/355,814.59 = 143,119.19/x
  3. Step 3: Cross multiply
    257,849.57x = 355,814.59 × 143,119.19
  4. Step 4: Simplify right side
    257,849.57x = 50,923,895,910.98
  5. Step 5: Solve for x
    x = 50,923,895,910.98/257,849.57
  6. Step 6: Final answer
    x = 197,494.59

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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.