Home / 279,810.12-386,249.94-166,611

Finding the Fourth Proportional to 279,810.12, 386,249.94 and 166,611

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Solution

The fourth proportional to 279,810.12, 386,249.94 and 166,611 is: 229,989.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,810.12 : 386,249.94 = 166,611 : x
  2. Step 2: Convert to fraction form
    279,810.12/386,249.94 = 166,611/x
  3. Step 3: Cross multiply
    279,810.12x = 386,249.94 × 166,611
  4. Step 4: Simplify right side
    279,810.12x = 64,353,488,753.34
  5. Step 5: Solve for x
    x = 64,353,488,753.34/279,810.12
  6. Step 6: Final answer
    x = 229,989.85

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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.