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Finding the Fourth Proportional to 192,712.41, 288,902.50 and 74,466.72

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Solution

The fourth proportional to 192,712.41, 288,902.50 and 74,466.72 is: 111,635.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,712.41 : 288,902.50 = 74,466.72 : x
  2. Step 2: Convert to fraction form
    192,712.41/288,902.50 = 74,466.72/x
  3. Step 3: Cross multiply
    192,712.41x = 288,902.50 × 74,466.72
  4. Step 4: Simplify right side
    192,712.41x = 21,513,621,388.63
  5. Step 5: Solve for x
    x = 21,513,621,388.63/192,712.41
  6. Step 6: Final answer
    x = 111,635.89

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.