Home / 257,849.24-355,814.13-143,118.87

Finding the Fourth Proportional to 257,849.24, 355,814.13 and 143,118.87

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Solution

The fourth proportional to 257,849.24, 355,814.13 and 143,118.87 is: 197,494.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,849.24 : 355,814.13 = 143,118.87 : x
  2. Step 2: Convert to fraction form
    257,849.24/355,814.13 = 143,118.87/x
  3. Step 3: Cross multiply
    257,849.24x = 355,814.13 × 143,118.87
  4. Step 4: Simplify right side
    257,849.24x = 50,923,715,418.03
  5. Step 5: Solve for x
    x = 50,923,715,418.03/257,849.24
  6. Step 6: Final answer
    x = 197,494.15

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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.