Home / 222,949.28-307,654.86-122,353.76

Finding the Fourth Proportional to 222,949.28, 307,654.86 and 122,353.76

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Solution

The fourth proportional to 222,949.28, 307,654.86 and 122,353.76 is: 168,839.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,949.28 : 307,654.86 = 122,353.76 : x
  2. Step 2: Convert to fraction form
    222,949.28/307,654.86 = 122,353.76/x
  3. Step 3: Cross multiply
    222,949.28x = 307,654.86 × 122,353.76
  4. Step 4: Simplify right side
    222,949.28x = 37,642,728,903.27
  5. Step 5: Solve for x
    x = 37,642,728,903.27/222,949.28
  6. Step 6: Final answer
    x = 168,839.88

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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.