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Finding the Fourth Proportional to 279,850.56, 386,203.44 and 158,996.88

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Solution

The fourth proportional to 279,850.56, 386,203.44 and 158,996.88 is: 219,421.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,850.56 : 386,203.44 = 158,996.88 : x
  2. Step 2: Convert to fraction form
    279,850.56/386,203.44 = 158,996.88/x
  3. Step 3: Cross multiply
    279,850.56x = 386,203.44 × 158,996.88
  4. Step 4: Simplify right side
    279,850.56x = 61,405,142,005.27
  5. Step 5: Solve for x
    x = 61,405,142,005.27/279,850.56
  6. Step 6: Final answer
    x = 219,421.19

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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.