Home / 222,106.30-306,513.94-121,504.30

Finding the Fourth Proportional to 222,106.30, 306,513.94 and 121,504.30

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Solution

The fourth proportional to 222,106.30, 306,513.94 and 121,504.30 is: 167,679.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,106.30 : 306,513.94 = 121,504.30 : x
  2. Step 2: Convert to fraction form
    222,106.30/306,513.94 = 121,504.30/x
  3. Step 3: Cross multiply
    222,106.30x = 306,513.94 × 121,504.30
  4. Step 4: Simplify right side
    222,106.30x = 37,242,760,187.37
  5. Step 5: Solve for x
    x = 37,242,760,187.37/222,106.30
  6. Step 6: Final answer
    x = 167,679.89

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1.5x scale

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.