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Finding the Fourth Proportional to 492,109.62, 738,164.40 and 118,132.62

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Solution

The fourth proportional to 492,109.62, 738,164.40 and 118,132.62 is: 177,198.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,109.62 : 738,164.40 = 118,132.62 : x
  2. Step 2: Convert to fraction form
    492,109.62/738,164.40 = 118,132.62/x
  3. Step 3: Cross multiply
    492,109.62x = 738,164.40 × 118,132.62
  4. Step 4: Simplify right side
    492,109.62x = 87,201,294,562.73
  5. Step 5: Solve for x
    x = 87,201,294,562.73/492,109.62
  6. Step 6: Final answer
    x = 177,198.92

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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.