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Finding the Fourth Proportional to 222,003.66, 306,358.83 and 121,399.50

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Solution

The fourth proportional to 222,003.66, 306,358.83 and 121,399.50 is: 167,527.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,003.66 : 306,358.83 = 121,399.50 : x
  2. Step 2: Convert to fraction form
    222,003.66/306,358.83 = 121,399.50/x
  3. Step 3: Cross multiply
    222,003.66x = 306,358.83 × 121,399.50
  4. Step 4: Simplify right side
    222,003.66x = 37,191,808,782.59
  5. Step 5: Solve for x
    x = 37,191,808,782.59/222,003.66
  6. Step 6: Final answer
    x = 167,527.91

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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.