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Finding the Fourth Proportional to 491,666.45, 737,540.67 and 136,683.54

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Solution

The fourth proportional to 491,666.45, 737,540.67 and 136,683.54 is: 205,036.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,666.45 : 737,540.67 = 136,683.54 : x
  2. Step 2: Convert to fraction form
    491,666.45/737,540.67 = 136,683.54/x
  3. Step 3: Cross multiply
    491,666.45x = 737,540.67 × 136,683.54
  4. Step 4: Simplify right side
    491,666.45x = 100,809,669,669.57
  5. Step 5: Solve for x
    x = 100,809,669,669.57/491,666.45
  6. Step 6: Final answer
    x = 205,036.71

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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.