Home / 279,766.14-420,015.04-166,121.46

Finding the Fourth Proportional to 279,766.14, 420,015.04 and 166,121.46

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Solution

The fourth proportional to 279,766.14, 420,015.04 and 166,121.46 is: 249,399.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,766.14 : 420,015.04 = 166,121.46 : x
  2. Step 2: Convert to fraction form
    279,766.14/420,015.04 = 166,121.46/x
  3. Step 3: Cross multiply
    279,766.14x = 420,015.04 × 166,121.46
  4. Step 4: Simplify right side
    279,766.14x = 69,773,511,666.76
  5. Step 5: Solve for x
    x = 69,773,511,666.76/279,766.14
  6. Step 6: Final answer
    x = 249,399.42

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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.