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Finding the Fourth Proportional to 303,971.60, 456,121.56 and 126,601.04

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Solution

The fourth proportional to 303,971.60, 456,121.56 and 126,601.04 is: 189,969.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,971.60 : 456,121.56 = 126,601.04 : x
  2. Step 2: Convert to fraction form
    303,971.60/456,121.56 = 126,601.04/x
  3. Step 3: Cross multiply
    303,971.60x = 456,121.56 × 126,601.04
  4. Step 4: Simplify right side
    303,971.60x = 57,745,463,862.42
  5. Step 5: Solve for x
    x = 57,745,463,862.42/303,971.60
  6. Step 6: Final answer
    x = 189,969.93

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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.