Home / 257,982.12-355,995.78-144,783

Finding the Fourth Proportional to 257,982.12, 355,995.78 and 144,783

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Solution

The fourth proportional to 257,982.12, 355,995.78 and 144,783 is: 199,789.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,982.12 : 355,995.78 = 144,783 : x
  2. Step 2: Convert to fraction form
    257,982.12/355,995.78 = 144,783/x
  3. Step 3: Cross multiply
    257,982.12x = 355,995.78 × 144,783
  4. Step 4: Simplify right side
    257,982.12x = 51,542,137,015.74
  5. Step 5: Solve for x
    x = 51,542,137,015.74/257,982.12
  6. Step 6: Final answer
    x = 199,789.57

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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.