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Finding the Fourth Proportional to 203,160.76, 280,268.78 and 131,563.86

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Solution

The fourth proportional to 203,160.76, 280,268.78 and 131,563.86 is: 181,497.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,160.76 : 280,268.78 = 131,563.86 : x
  2. Step 2: Convert to fraction form
    203,160.76/280,268.78 = 131,563.86/x
  3. Step 3: Cross multiply
    203,160.76x = 280,268.78 × 131,563.86
  4. Step 4: Simplify right side
    203,160.76x = 36,873,242,534.29
  5. Step 5: Solve for x
    x = 36,873,242,534.29/203,160.76
  6. Step 6: Final answer
    x = 181,497.86

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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.