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Finding the Fourth Proportional to 201,287.88, 301,912.38 and 61,047.72

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Solution

The fourth proportional to 201,287.88, 301,912.38 and 61,047.72 is: 91,565.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,287.88 : 301,912.38 = 61,047.72 : x
  2. Step 2: Convert to fraction form
    201,287.88/301,912.38 = 61,047.72/x
  3. Step 3: Cross multiply
    201,287.88x = 301,912.38 × 61,047.72
  4. Step 4: Simplify right side
    201,287.88x = 18,431,062,438.77
  5. Step 5: Solve for x
    x = 18,431,062,438.77/201,287.88
  6. Step 6: Final answer
    x = 91,565.68

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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.