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Finding the Fourth Proportional to 279,750.63, 419,991.77 and 166,105.95

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Solution

The fourth proportional to 279,750.63, 419,991.77 and 166,105.95 is: 249,376.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,750.63 : 419,991.77 = 166,105.95 : x
  2. Step 2: Convert to fraction form
    279,750.63/419,991.77 = 166,105.95/x
  3. Step 3: Cross multiply
    279,750.63x = 419,991.77 × 166,105.95
  4. Step 4: Simplify right side
    279,750.63x = 69,763,131,117.50
  5. Step 5: Solve for x
    x = 69,763,131,117.50/279,750.63
  6. Step 6: Final answer
    x = 249,376.14

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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.