Home / 257,917.44-355,918.08-143,193.60

Finding the Fourth Proportional to 257,917.44, 355,918.08 and 143,193.60

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Solution

The fourth proportional to 257,917.44, 355,918.08 and 143,193.60 is: 197,602.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,917.44 : 355,918.08 = 143,193.60 : x
  2. Step 2: Convert to fraction form
    257,917.44/355,918.08 = 143,193.60/x
  3. Step 3: Cross multiply
    257,917.44x = 355,918.08 × 143,193.60
  4. Step 4: Simplify right side
    257,917.44x = 50,965,191,180.29
  5. Step 5: Solve for x
    x = 50,965,191,180.29/257,917.44
  6. Step 6: Final answer
    x = 197,602.73

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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.