Home / 279,968.58-386,364.39-171,090.54

Finding the Fourth Proportional to 279,968.58, 386,364.39 and 171,090.54

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Solution

The fourth proportional to 279,968.58, 386,364.39 and 171,090.54 is: 236,109.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,968.58 : 386,364.39 = 171,090.54 : x
  2. Step 2: Convert to fraction form
    279,968.58/386,364.39 = 171,090.54/x
  3. Step 3: Cross multiply
    279,968.58x = 386,364.39 × 171,090.54
  4. Step 4: Simplify right side
    279,968.58x = 66,103,292,121.87
  5. Step 5: Solve for x
    x = 66,103,292,121.87/279,968.58
  6. Step 6: Final answer
    x = 236,109.68

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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.