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Finding the Fourth Proportional to 201,235.56, 301,913.64 and 81,230.73

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Solution

The fourth proportional to 201,235.56, 301,913.64 and 81,230.73 is: 121,870.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,235.56 : 301,913.64 = 81,230.73 : x
  2. Step 2: Convert to fraction form
    201,235.56/301,913.64 = 81,230.73/x
  3. Step 3: Cross multiply
    201,235.56x = 301,913.64 × 81,230.73
  4. Step 4: Simplify right side
    201,235.56x = 24,524,665,374.16
  5. Step 5: Solve for x
    x = 24,524,665,374.16/201,235.56
  6. Step 6: Final answer
    x = 121,870.44

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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.