Home / 323,051.36-445,621.92-209,949.44

Finding the Fourth Proportional to 323,051.36, 445,621.92 and 209,949.44

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Solution

The fourth proportional to 323,051.36, 445,621.92 and 209,949.44 is: 289,607.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,051.36 : 445,621.92 = 209,949.44 : x
  2. Step 2: Convert to fraction form
    323,051.36/445,621.92 = 209,949.44/x
  3. Step 3: Cross multiply
    323,051.36x = 445,621.92 × 209,949.44
  4. Step 4: Simplify right side
    323,051.36x = 93,558,072,555.72
  5. Step 5: Solve for x
    x = 93,558,072,555.72/323,051.36
  6. Step 6: Final answer
    x = 289,607.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.