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Finding the Fourth Proportional to 330,238.69, 455,868.89 and 222,954.03

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Solution

The fourth proportional to 330,238.69, 455,868.89 and 222,954.03 is: 307,770.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,238.69 : 455,868.89 = 222,954.03 : x
  2. Step 2: Convert to fraction form
    330,238.69/455,868.89 = 222,954.03/x
  3. Step 3: Cross multiply
    330,238.69x = 455,868.89 × 222,954.03
  4. Step 4: Simplify right side
    330,238.69x = 101,637,805,062.36
  5. Step 5: Solve for x
    x = 101,637,805,062.36/330,238.69
  6. Step 6: Final answer
    x = 307,770.74

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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.