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Finding the Fourth Proportional to 286,873, 395,884.74 and 167,641

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Solution

The fourth proportional to 286,873, 395,884.74 and 167,641 is: 231,344.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,873 : 395,884.74 = 167,641 : x
  2. Step 2: Convert to fraction form
    286,873/395,884.74 = 167,641/x
  3. Step 3: Cross multiply
    286,873x = 395,884.74 × 167,641
  4. Step 4: Simplify right side
    286,873x = 66,366,513,698.34
  5. Step 5: Solve for x
    x = 66,366,513,698.34/286,873
  6. Step 6: Final answer
    x = 231,344.58

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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.