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Finding the Fourth Proportional to 491,667.45, 737,542.17 and 136,684.54

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Solution

The fourth proportional to 491,667.45, 737,542.17 and 136,684.54 is: 205,038.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,667.45 : 737,542.17 = 136,684.54 : x
  2. Step 2: Convert to fraction form
    491,667.45/737,542.17 = 136,684.54/x
  3. Step 3: Cross multiply
    491,667.45x = 737,542.17 × 136,684.54
  4. Step 4: Simplify right side
    491,667.45x = 100,810,612,237.05
  5. Step 5: Solve for x
    x = 100,810,612,237.05/491,667.45
  6. Step 6: Final answer
    x = 205,038.21

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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.