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Finding the Fourth Proportional to 221,964.44, 333,030.49 and 133,279.56

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Solution

The fourth proportional to 221,964.44, 333,030.49 and 133,279.56 is: 199,969.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,964.44 : 333,030.49 = 133,279.56 : x
  2. Step 2: Convert to fraction form
    221,964.44/333,030.49 = 133,279.56/x
  3. Step 3: Cross multiply
    221,964.44x = 333,030.49 × 133,279.56
  4. Step 4: Simplify right side
    221,964.44x = 44,386,156,840.59
  5. Step 5: Solve for x
    x = 44,386,156,840.59/221,964.44
  6. Step 6: Final answer
    x = 199,969.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.