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Finding the Fourth Proportional to 201,491.58, 302,172.12 and 66,525.33

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Solution

The fourth proportional to 201,491.58, 302,172.12 and 66,525.33 is: 99,766.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,491.58 : 302,172.12 = 66,525.33 : x
  2. Step 2: Convert to fraction form
    201,491.58/302,172.12 = 66,525.33/x
  3. Step 3: Cross multiply
    201,491.58x = 302,172.12 × 66,525.33
  4. Step 4: Simplify right side
    201,491.58x = 20,102,099,999.80
  5. Step 5: Solve for x
    x = 20,102,099,999.80/201,491.58
  6. Step 6: Final answer
    x = 99,766.45

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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.