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Finding the Fourth Proportional to 222,378.66, 332,999.64 and 122,428.98

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Solution

The fourth proportional to 222,378.66, 332,999.64 and 122,428.98 is: 183,330.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,378.66 : 332,999.64 = 122,428.98 : x
  2. Step 2: Convert to fraction form
    222,378.66/332,999.64 = 122,428.98/x
  3. Step 3: Cross multiply
    222,378.66x = 332,999.64 × 122,428.98
  4. Step 4: Simplify right side
    222,378.66x = 40,768,806,265.57
  5. Step 5: Solve for x
    x = 40,768,806,265.57/222,378.66
  6. Step 6: Final answer
    x = 183,330.57

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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.