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Finding the Fourth Proportional to 172,858, 259,287 and 41,530

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Solution

The fourth proportional to 172,858, 259,287 and 41,530 is: 62,295

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,858 : 259,287 = 41,530 : x
  2. Step 2: Convert to fraction form
    172,858/259,287 = 41,530/x
  3. Step 3: Cross multiply
    172,858x = 259,287 × 41,530
  4. Step 4: Simplify right side
    172,858x = 10,768,189,110
  5. Step 5: Solve for x
    x = 10,768,189,110/172,858
  6. Step 6: Final answer
    x = 62,295

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.