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Finding the Fourth Proportional to 388,104.44, 535,663.76 and 226,999.08

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Solution

The fourth proportional to 388,104.44, 535,663.76 and 226,999.08 is: 313,305.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,104.44 : 535,663.76 = 226,999.08 : x
  2. Step 2: Convert to fraction form
    388,104.44/535,663.76 = 226,999.08/x
  3. Step 3: Cross multiply
    388,104.44x = 535,663.76 × 226,999.08
  4. Step 4: Simplify right side
    388,104.44x = 121,595,180,709.34
  5. Step 5: Solve for x
    x = 121,595,180,709.34/388,104.44
  6. Step 6: Final answer
    x = 313,305.31

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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.