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Finding the Fourth Proportional to 203,367.12, 306,610.86 and 189,646.96

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Solution

The fourth proportional to 203,367.12, 306,610.86 and 189,646.96 is: 285,925.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,367.12 : 306,610.86 = 189,646.96 : x
  2. Step 2: Convert to fraction form
    203,367.12/306,610.86 = 189,646.96/x
  3. Step 3: Cross multiply
    203,367.12x = 306,610.86 × 189,646.96
  4. Step 4: Simplify right side
    203,367.12x = 58,147,817,501.99
  5. Step 5: Solve for x
    x = 58,147,817,501.99/203,367.12
  6. Step 6: Final answer
    x = 285,925.36

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.