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Finding the Fourth Proportional to 303,911.18, 419,390.16 and 167,938.10

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Solution

The fourth proportional to 303,911.18, 419,390.16 and 167,938.10 is: 231,750.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,911.18 : 419,390.16 = 167,938.10 : x
  2. Step 2: Convert to fraction form
    303,911.18/419,390.16 = 167,938.10/x
  3. Step 3: Cross multiply
    303,911.18x = 419,390.16 × 167,938.10
  4. Step 4: Simplify right side
    303,911.18x = 70,431,586,629.10
  5. Step 5: Solve for x
    x = 70,431,586,629.10/303,911.18
  6. Step 6: Final answer
    x = 231,750.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.