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Finding the Fourth Proportional to 303,843.51, 419,312.49 and 167,886.21

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Solution

The fourth proportional to 303,843.51, 419,312.49 and 167,886.21 is: 231,687.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,843.51 : 419,312.49 = 167,886.21 : x
  2. Step 2: Convert to fraction form
    303,843.51/419,312.49 = 167,886.21/x
  3. Step 3: Cross multiply
    303,843.51x = 419,312.49 × 167,886.21
  4. Step 4: Simplify right side
    303,843.51x = 70,396,784,751.76
  5. Step 5: Solve for x
    x = 70,396,784,751.76/303,843.51
  6. Step 6: Final answer
    x = 231,687.64

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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.