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Finding the Fourth Proportional to 201,517.58, 302,086.02 and 68,303.36

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Solution

The fourth proportional to 201,517.58, 302,086.02 and 68,303.36 is: 102,390.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,517.58 : 302,086.02 = 68,303.36 : x
  2. Step 2: Convert to fraction form
    201,517.58/302,086.02 = 68,303.36/x
  3. Step 3: Cross multiply
    201,517.58x = 302,086.02 × 68,303.36
  4. Step 4: Simplify right side
    201,517.58x = 20,633,490,175.03
  5. Step 5: Solve for x
    x = 20,633,490,175.03/201,517.58
  6. Step 6: Final answer
    x = 102,390.52

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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.