Home / 279,055.87-418,574.40-121,284.34

Finding the Fourth Proportional to 279,055.87, 418,574.40 and 121,284.34

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Solution

The fourth proportional to 279,055.87, 418,574.40 and 121,284.34 is: 181,922.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,055.87 : 418,574.40 = 121,284.34 : x
  2. Step 2: Convert to fraction form
    279,055.87/418,574.40 = 121,284.34/x
  3. Step 3: Cross multiply
    279,055.87x = 418,574.40 × 121,284.34
  4. Step 4: Simplify right side
    279,055.87x = 50,766,519,844.90
  5. Step 5: Solve for x
    x = 50,766,519,844.90/279,055.87
  6. Step 6: Final answer
    x = 181,922.42

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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.