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Finding the Fourth Proportional to 203,503.57, 305,250.59 and 53,754.31

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Solution

The fourth proportional to 203,503.57, 305,250.59 and 53,754.31 is: 80,630.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,503.57 : 305,250.59 = 53,754.31 : x
  2. Step 2: Convert to fraction form
    203,503.57/305,250.59 = 53,754.31/x
  3. Step 3: Cross multiply
    203,503.57x = 305,250.59 × 53,754.31
  4. Step 4: Simplify right side
    203,503.57x = 16,408,534,842.54
  5. Step 5: Solve for x
    x = 16,408,534,842.54/203,503.57
  6. Step 6: Final answer
    x = 80,630.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.