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Finding the Fourth Proportional to 303,960.20, 419,452.02 and 167,987.12

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Solution

The fourth proportional to 303,960.20, 419,452.02 and 167,987.12 is: 231,815.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,960.20 : 419,452.02 = 167,987.12 : x
  2. Step 2: Convert to fraction form
    303,960.20/419,452.02 = 167,987.12/x
  3. Step 3: Cross multiply
    303,960.20x = 419,452.02 × 167,987.12
  4. Step 4: Simplify right side
    303,960.20x = 70,462,534,720.72
  5. Step 5: Solve for x
    x = 70,462,534,720.72/303,960.20
  6. Step 6: Final answer
    x = 231,815.01

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1.5x scale

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.