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Finding the Fourth Proportional to 201,789.80, 302,684.70 and 179,628.20

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Solution

The fourth proportional to 201,789.80, 302,684.70 and 179,628.20 is: 269,442.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,789.80 : 302,684.70 = 179,628.20 : x
  2. Step 2: Convert to fraction form
    201,789.80/302,684.70 = 179,628.20/x
  3. Step 3: Cross multiply
    201,789.80x = 302,684.70 × 179,628.20
  4. Step 4: Simplify right side
    201,789.80x = 54,370,707,828.54
  5. Step 5: Solve for x
    x = 54,370,707,828.54/201,789.80
  6. Step 6: Final answer
    x = 269,442.30

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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.