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Finding the Fourth Proportional to 220,453.04, 330,653.14 and 68,661.07

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Solution

The fourth proportional to 220,453.04, 330,653.14 and 68,661.07 is: 102,983.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,453.04 : 330,653.14 = 68,661.07 : x
  2. Step 2: Convert to fraction form
    220,453.04/330,653.14 = 68,661.07/x
  3. Step 3: Cross multiply
    220,453.04x = 330,653.14 × 68,661.07
  4. Step 4: Simplify right side
    220,453.04x = 22,702,997,392.97
  5. Step 5: Solve for x
    x = 22,702,997,392.97/220,453.04
  6. Step 6: Final answer
    x = 102,983.37

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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.