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Finding the Fourth Proportional to 203,236.58, 280,462.68 and 122,667.50

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Solution

The fourth proportional to 203,236.58, 280,462.68 and 122,667.50 is: 169,278.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,236.58 : 280,462.68 = 122,667.50 : x
  2. Step 2: Convert to fraction form
    203,236.58/280,462.68 = 122,667.50/x
  3. Step 3: Cross multiply
    203,236.58x = 280,462.68 × 122,667.50
  4. Step 4: Simplify right side
    203,236.58x = 34,403,655,798.90
  5. Step 5: Solve for x
    x = 34,403,655,798.90/203,236.58
  6. Step 6: Final answer
    x = 169,278.86

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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.