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Finding the Fourth Proportional to 492,001.40, 738,174.90 and 211,604.60

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Solution

The fourth proportional to 492,001.40, 738,174.90 and 211,604.60 is: 317,481.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,001.40 : 738,174.90 = 211,604.60 : x
  2. Step 2: Convert to fraction form
    492,001.40/738,174.90 = 211,604.60/x
  3. Step 3: Cross multiply
    492,001.40x = 738,174.90 × 211,604.60
  4. Step 4: Simplify right side
    492,001.40x = 156,201,204,444.54
  5. Step 5: Solve for x
    x = 156,201,204,444.54/492,001.40
  6. Step 6: Final answer
    x = 317,481.22

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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.