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Finding the Fourth Proportional to 203,124.56, 280,311.18 and 113,700.56

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Solution

The fourth proportional to 203,124.56, 280,311.18 and 113,700.56 is: 156,906.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,124.56 : 280,311.18 = 113,700.56 : x
  2. Step 2: Convert to fraction form
    203,124.56/280,311.18 = 113,700.56/x
  3. Step 3: Cross multiply
    203,124.56x = 280,311.18 × 113,700.56
  4. Step 4: Simplify right side
    203,124.56x = 31,871,538,140.26
  5. Step 5: Solve for x
    x = 31,871,538,140.26/203,124.56
  6. Step 6: Final answer
    x = 156,906.37

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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.