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Finding the Fourth Proportional to 201,119.48, 301,806.30 and 112,431.23

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Solution

The fourth proportional to 201,119.48, 301,806.30 and 112,431.23 is: 168,717.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,119.48 : 301,806.30 = 112,431.23 : x
  2. Step 2: Convert to fraction form
    201,119.48/301,806.30 = 112,431.23/x
  3. Step 3: Cross multiply
    201,119.48x = 301,806.30 × 112,431.23
  4. Step 4: Simplify right side
    201,119.48x = 33,932,453,530.75
  5. Step 5: Solve for x
    x = 33,932,453,530.75/201,119.48
  6. Step 6: Final answer
    x = 168,717.89

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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.