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Finding the Fourth Proportional to 201,716.32, 302,487 and 68,560.82

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Solution

The fourth proportional to 201,716.32, 302,487 and 68,560.82 is: 102,811.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,716.32 : 302,487 = 68,560.82 : x
  2. Step 2: Convert to fraction form
    201,716.32/302,487 = 68,560.82/x
  3. Step 3: Cross multiply
    201,716.32x = 302,487 × 68,560.82
  4. Step 4: Simplify right side
    201,716.32x = 20,738,756,759.34
  5. Step 5: Solve for x
    x = 20,738,756,759.34/201,716.32
  6. Step 6: Final answer
    x = 102,811.50

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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.