Home / 331,403.03-457,336.73-188,163.07

Finding the Fourth Proportional to 331,403.03, 457,336.73 and 188,163.07

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Solution

The fourth proportional to 331,403.03, 457,336.73 and 188,163.07 is: 259,665.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,403.03 : 457,336.73 = 188,163.07 : x
  2. Step 2: Convert to fraction form
    331,403.03/457,336.73 = 188,163.07/x
  3. Step 3: Cross multiply
    331,403.03x = 457,336.73 × 188,163.07
  4. Step 4: Simplify right side
    331,403.03x = 86,053,883,140.56
  5. Step 5: Solve for x
    x = 86,053,883,140.56/331,403.03
  6. Step 6: Final answer
    x = 259,665.35

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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.