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Finding the Fourth Proportional to 201,134.10, 301,373.10 and 172,921.80

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Solution

The fourth proportional to 201,134.10, 301,373.10 and 172,921.80 is: 259,100.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,134.10 : 301,373.10 = 172,921.80 : x
  2. Step 2: Convert to fraction form
    201,134.10/301,373.10 = 172,921.80/x
  3. Step 3: Cross multiply
    201,134.10x = 301,373.10 × 172,921.80
  4. Step 4: Simplify right side
    201,134.10x = 52,113,978,923.58
  5. Step 5: Solve for x
    x = 52,113,978,923.58/201,134.10
  6. Step 6: Final answer
    x = 259,100.66

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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.