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Finding the Fourth Proportional to 303,842.51, 419,311.11 and 167,885.21

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Solution

The fourth proportional to 303,842.51, 419,311.11 and 167,885.21 is: 231,686.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,842.51 : 419,311.11 = 167,885.21 : x
  2. Step 2: Convert to fraction form
    303,842.51/419,311.11 = 167,885.21/x
  3. Step 3: Cross multiply
    303,842.51x = 419,311.11 × 167,885.21
  4. Step 4: Simplify right side
    303,842.51x = 70,396,131,661.13
  5. Step 5: Solve for x
    x = 70,396,131,661.13/303,842.51
  6. Step 6: Final answer
    x = 231,686.25

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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.