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Finding the Fourth Proportional to 201,001.18, 301,218.31 and 111,084.38

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Solution

The fourth proportional to 201,001.18, 301,218.31 and 111,084.38 is: 166,469.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,001.18 : 301,218.31 = 111,084.38 : x
  2. Step 2: Convert to fraction form
    201,001.18/301,218.31 = 111,084.38/x
  3. Step 3: Cross multiply
    201,001.18x = 301,218.31 × 111,084.38
  4. Step 4: Simplify right side
    201,001.18x = 33,460,648,933.29
  5. Step 5: Solve for x
    x = 33,460,648,933.29/201,001.18
  6. Step 6: Final answer
    x = 166,469.92

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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.