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Finding the Fourth Proportional to 399,638.52, 599,441.31 and 222,032.25

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Solution

The fourth proportional to 399,638.52, 599,441.31 and 222,032.25 is: 333,039.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,638.52 : 599,441.31 = 222,032.25 : x
  2. Step 2: Convert to fraction form
    399,638.52/599,441.31 = 222,032.25/x
  3. Step 3: Cross multiply
    399,638.52x = 599,441.31 × 222,032.25
  4. Step 4: Simplify right side
    399,638.52x = 133,095,302,802.25
  5. Step 5: Solve for x
    x = 133,095,302,802.25/399,638.52
  6. Step 6: Final answer
    x = 333,039.22

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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.