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Finding the Fourth Proportional to 203,559.75, 280,912.59 and 114,135.75

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Solution

The fourth proportional to 203,559.75, 280,912.59 and 114,135.75 is: 157,507.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,559.75 : 280,912.59 = 114,135.75 : x
  2. Step 2: Convert to fraction form
    203,559.75/280,912.59 = 114,135.75/x
  3. Step 3: Cross multiply
    203,559.75x = 280,912.59 × 114,135.75
  4. Step 4: Simplify right side
    203,559.75x = 32,062,169,144.09
  5. Step 5: Solve for x
    x = 32,062,169,144.09/203,559.75
  6. Step 6: Final answer
    x = 157,507.41

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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.