Home / 257,512.10-355,367.46-142,798.82

Finding the Fourth Proportional to 257,512.10, 355,367.46 and 142,798.82

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Solution

The fourth proportional to 257,512.10, 355,367.46 and 142,798.82 is: 197,062.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,512.10 : 355,367.46 = 142,798.82 : x
  2. Step 2: Convert to fraction form
    257,512.10/355,367.46 = 142,798.82/x
  3. Step 3: Cross multiply
    257,512.10x = 355,367.46 × 142,798.82
  4. Step 4: Simplify right side
    257,512.10x = 50,746,052,177.56
  5. Step 5: Solve for x
    x = 50,746,052,177.56/257,512.10
  6. Step 6: Final answer
    x = 197,062.79

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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.