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Finding the Fourth Proportional to 329,500.67, 494,151.21 and 139,959.27

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Solution

The fourth proportional to 329,500.67, 494,151.21 and 139,959.27 is: 209,896.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,500.67 : 494,151.21 = 139,959.27 : x
  2. Step 2: Convert to fraction form
    329,500.67/494,151.21 = 139,959.27/x
  3. Step 3: Cross multiply
    329,500.67x = 494,151.21 × 139,959.27
  4. Step 4: Simplify right side
    329,500.67x = 69,161,042,621.22
  5. Step 5: Solve for x
    x = 69,161,042,621.22/329,500.67
  6. Step 6: Final answer
    x = 209,896.52

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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.