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Finding the Fourth Proportional to 235,950, 325,611 and 135,380.40

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Solution

The fourth proportional to 235,950, 325,611 and 135,380.40 is: 186,824.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,950 : 325,611 = 135,380.40 : x
  2. Step 2: Convert to fraction form
    235,950/325,611 = 135,380.40/x
  3. Step 3: Cross multiply
    235,950x = 325,611 × 135,380.40
  4. Step 4: Simplify right side
    235,950x = 44,081,347,424.40
  5. Step 5: Solve for x
    x = 44,081,347,424.40/235,950
  6. Step 6: Final answer
    x = 186,824.95

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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.