Home / 257,932.17-355,947.80-143,212.59

Finding the Fourth Proportional to 257,932.17, 355,947.80 and 143,212.59

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Solution

The fourth proportional to 257,932.17, 355,947.80 and 143,212.59 is: 197,634.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,932.17 : 355,947.80 = 143,212.59 : x
  2. Step 2: Convert to fraction form
    257,932.17/355,947.80 = 143,212.59/x
  3. Step 3: Cross multiply
    257,932.17x = 355,947.80 × 143,212.59
  4. Step 4: Simplify right side
    257,932.17x = 50,976,205,626.74
  5. Step 5: Solve for x
    x = 50,976,205,626.74/257,932.17
  6. Step 6: Final answer
    x = 197,634.15

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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.