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Finding the Fourth Proportional to 395,601.16, 545,985.30 and 225,845.32

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Solution

The fourth proportional to 395,601.16, 545,985.30 and 225,845.32 is: 311,698.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,601.16 : 545,985.30 = 225,845.32 : x
  2. Step 2: Convert to fraction form
    395,601.16/545,985.30 = 225,845.32/x
  3. Step 3: Cross multiply
    395,601.16x = 545,985.30 × 225,845.32
  4. Step 4: Simplify right side
    395,601.16x = 123,308,224,793.80
  5. Step 5: Solve for x
    x = 123,308,224,793.80/395,601.16
  6. Step 6: Final answer
    x = 311,698.34

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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.