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Finding the Fourth Proportional to 201,446.26, 302,107.50 and 66,485.47

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Solution

The fourth proportional to 201,446.26, 302,107.50 and 66,485.47 is: 99,707.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,446.26 : 302,107.50 = 66,485.47 : x
  2. Step 2: Convert to fraction form
    201,446.26/302,107.50 = 66,485.47/x
  3. Step 3: Cross multiply
    201,446.26x = 302,107.50 × 66,485.47
  4. Step 4: Simplify right side
    201,446.26x = 20,085,759,128.03
  5. Step 5: Solve for x
    x = 20,085,759,128.03/201,446.26
  6. Step 6: Final answer
    x = 99,707.78

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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.