Home / 257,320.21-355,060.55-161,759.25

Finding the Fourth Proportional to 257,320.21, 355,060.55 and 161,759.25

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Solution

The fourth proportional to 257,320.21, 355,060.55 and 161,759.25 is: 223,201.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,320.21 : 355,060.55 = 161,759.25 : x
  2. Step 2: Convert to fraction form
    257,320.21/355,060.55 = 161,759.25/x
  3. Step 3: Cross multiply
    257,320.21x = 355,060.55 × 161,759.25
  4. Step 4: Simplify right side
    257,320.21x = 57,434,328,272.59
  5. Step 5: Solve for x
    x = 57,434,328,272.59/257,320.21
  6. Step 6: Final answer
    x = 223,201.78

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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.