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Finding the Fourth Proportional to 201,139.07, 301,703.85 and 101,272.41

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Solution

The fourth proportional to 201,139.07, 301,703.85 and 101,272.41 is: 151,906.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,139.07 : 301,703.85 = 101,272.41 : x
  2. Step 2: Convert to fraction form
    201,139.07/301,703.85 = 101,272.41/x
  3. Step 3: Cross multiply
    201,139.07x = 301,703.85 × 101,272.41
  4. Step 4: Simplify right side
    201,139.07x = 30,554,275,995.78
  5. Step 5: Solve for x
    x = 30,554,275,995.78/201,139.07
  6. Step 6: Final answer
    x = 151,906.22

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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.