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Finding the Fourth Proportional to 605,067, 908,015.22 and 211,083

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Solution

The fourth proportional to 605,067, 908,015.22 and 211,083 is: 316,769.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,067 : 908,015.22 = 211,083 : x
  2. Step 2: Convert to fraction form
    605,067/908,015.22 = 211,083/x
  3. Step 3: Cross multiply
    605,067x = 908,015.22 × 211,083
  4. Step 4: Simplify right side
    605,067x = 191,666,576,683.26
  5. Step 5: Solve for x
    x = 191,666,576,683.26/605,067
  6. Step 6: Final answer
    x = 316,769.18

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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.