Home / 395,047.13-545,172.08-222,999.49

Finding the Fourth Proportional to 395,047.13, 545,172.08 and 222,999.49

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Solution

The fourth proportional to 395,047.13, 545,172.08 and 222,999.49 is: 307,743.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,047.13 : 545,172.08 = 222,999.49 : x
  2. Step 2: Convert to fraction form
    395,047.13/545,172.08 = 222,999.49/x
  3. Step 3: Cross multiply
    395,047.13x = 545,172.08 × 222,999.49
  4. Step 4: Simplify right side
    395,047.13x = 121,573,093,324.31
  5. Step 5: Solve for x
    x = 121,573,093,324.31/395,047.13
  6. Step 6: Final answer
    x = 307,743.26

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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.