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Finding the Fourth Proportional to 275,806.08, 380,653.56 and 168,437.88

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Solution

The fourth proportional to 275,806.08, 380,653.56 and 168,437.88 is: 232,469.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,806.08 : 380,653.56 = 168,437.88 : x
  2. Step 2: Convert to fraction form
    275,806.08/380,653.56 = 168,437.88/x
  3. Step 3: Cross multiply
    275,806.08x = 380,653.56 × 168,437.88
  4. Step 4: Simplify right side
    275,806.08x = 64,116,478,660.85
  5. Step 5: Solve for x
    x = 64,116,478,660.85/275,806.08
  6. Step 6: Final answer
    x = 232,469.42

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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.