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Finding the Fourth Proportional to 203,301.86, 280,558.22 and 112,659.35

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Solution

The fourth proportional to 203,301.86, 280,558.22 and 112,659.35 is: 155,470.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,301.86 : 280,558.22 = 112,659.35 : x
  2. Step 2: Convert to fraction form
    203,301.86/280,558.22 = 112,659.35/x
  3. Step 3: Cross multiply
    203,301.86x = 280,558.22 × 112,659.35
  4. Step 4: Simplify right side
    203,301.86x = 31,607,504,736.27
  5. Step 5: Solve for x
    x = 31,607,504,736.27/203,301.86
  6. Step 6: Final answer
    x = 155,470.81

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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.