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Finding the Fourth Proportional to 437,186.25, 655,805.70 and 137,676.60

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Solution

The fourth proportional to 437,186.25, 655,805.70 and 137,676.60 is: 206,523.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,186.25 : 655,805.70 = 137,676.60 : x
  2. Step 2: Convert to fraction form
    437,186.25/655,805.70 = 137,676.60/x
  3. Step 3: Cross multiply
    437,186.25x = 655,805.70 × 137,676.60
  4. Step 4: Simplify right side
    437,186.25x = 90,289,099,036.62
  5. Step 5: Solve for x
    x = 90,289,099,036.62/437,186.25
  6. Step 6: Final answer
    x = 206,523.19

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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.