Home / 279,899.10-419,848.65-92,910.60

Finding the Fourth Proportional to 279,899.10, 419,848.65 and 92,910.60

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Solution

The fourth proportional to 279,899.10, 419,848.65 and 92,910.60 is: 139,365.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,899.10 : 419,848.65 = 92,910.60 : x
  2. Step 2: Convert to fraction form
    279,899.10/419,848.65 = 92,910.60/x
  3. Step 3: Cross multiply
    279,899.10x = 419,848.65 × 92,910.60
  4. Step 4: Simplify right side
    279,899.10x = 39,008,389,980.69
  5. Step 5: Solve for x
    x = 39,008,389,980.69/279,899.10
  6. Step 6: Final answer
    x = 139,365.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.