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Finding the Fourth Proportional to 182,728.82, 274,231.71 and 77,621.54

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Solution

The fourth proportional to 182,728.82, 274,231.71 and 77,621.54 is: 116,491.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,728.82 : 274,231.71 = 77,621.54 : x
  2. Step 2: Convert to fraction form
    182,728.82/274,231.71 = 77,621.54/x
  3. Step 3: Cross multiply
    182,728.82x = 274,231.71 × 77,621.54
  4. Step 4: Simplify right side
    182,728.82x = 21,286,287,647.03
  5. Step 5: Solve for x
    x = 21,286,287,647.03/182,728.82
  6. Step 6: Final answer
    x = 116,491.14

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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.