Home / 222,011.43-306,371.21-121,409.43

Finding the Fourth Proportional to 222,011.43, 306,371.21 and 121,409.43

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Solution

The fourth proportional to 222,011.43, 306,371.21 and 121,409.43 is: 167,542.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,011.43 : 306,371.21 = 121,409.43 : x
  2. Step 2: Convert to fraction form
    222,011.43/306,371.21 = 121,409.43/x
  3. Step 3: Cross multiply
    222,011.43x = 306,371.21 × 121,409.43
  4. Step 4: Simplify right side
    222,011.43x = 37,196,353,367.46
  5. Step 5: Solve for x
    x = 37,196,353,367.46/222,011.43
  6. Step 6: Final answer
    x = 167,542.52

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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.