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Finding the Fourth Proportional to 201,944.98, 278,672.70 and 111,300.67

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Solution

The fourth proportional to 201,944.98, 278,672.70 and 111,300.67 is: 153,588.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,944.98 : 278,672.70 = 111,300.67 : x
  2. Step 2: Convert to fraction form
    201,944.98/278,672.70 = 111,300.67/x
  3. Step 3: Cross multiply
    201,944.98x = 278,672.70 × 111,300.67
  4. Step 4: Simplify right side
    201,944.98x = 31,016,458,986.43
  5. Step 5: Solve for x
    x = 31,016,458,986.43/201,944.98
  6. Step 6: Final answer
    x = 153,588.66

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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.