Home / 203,272.26-280,507.64-112,629.57

Finding the Fourth Proportional to 203,272.26, 280,507.64 and 112,629.57

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Solution

The fourth proportional to 203,272.26, 280,507.64 and 112,629.57 is: 155,424.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,272.26 : 280,507.64 = 112,629.57 : x
  2. Step 2: Convert to fraction form
    203,272.26/280,507.64 = 112,629.57/x
  3. Step 3: Cross multiply
    203,272.26x = 280,507.64 × 112,629.57
  4. Step 4: Simplify right side
    203,272.26x = 31,593,454,311.77
  5. Step 5: Solve for x
    x = 31,593,454,311.77/203,272.26
  6. Step 6: Final answer
    x = 155,424.33

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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.