Home / 257,744.32-355,674.82-143,021.59

Finding the Fourth Proportional to 257,744.32, 355,674.82 and 143,021.59

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Solution

The fourth proportional to 257,744.32, 355,674.82 and 143,021.59 is: 197,362.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,744.32 : 355,674.82 = 143,021.59 : x
  2. Step 2: Convert to fraction form
    257,744.32/355,674.82 = 143,021.59/x
  3. Step 3: Cross multiply
    257,744.32x = 355,674.82 × 143,021.59
  4. Step 4: Simplify right side
    257,744.32x = 50,869,177,032.62
  5. Step 5: Solve for x
    x = 50,869,177,032.62/257,744.32
  6. Step 6: Final answer
    x = 197,362.94

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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.