Home / 222,004.16-306,359.50-121,400

Finding the Fourth Proportional to 222,004.16, 306,359.50 and 121,400

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Solution

The fourth proportional to 222,004.16, 306,359.50 and 121,400 is: 167,528.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,004.16 : 306,359.50 = 121,400 : x
  2. Step 2: Convert to fraction form
    222,004.16/306,359.50 = 121,400/x
  3. Step 3: Cross multiply
    222,004.16x = 306,359.50 × 121,400
  4. Step 4: Simplify right side
    222,004.16x = 37,192,043,300
  5. Step 5: Solve for x
    x = 37,192,043,300/222,004.16
  6. Step 6: Final answer
    x = 167,528.59

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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.