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Finding the Fourth Proportional to 261,735.51, 361,103.02 and 171,144.50

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Solution

The fourth proportional to 261,735.51, 361,103.02 and 171,144.50 is: 236,119.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,735.51 : 361,103.02 = 171,144.50 : x
  2. Step 2: Convert to fraction form
    261,735.51/361,103.02 = 171,144.50/x
  3. Step 3: Cross multiply
    261,735.51x = 361,103.02 × 171,144.50
  4. Step 4: Simplify right side
    261,735.51x = 61,800,795,806.39
  5. Step 5: Solve for x
    x = 61,800,795,806.39/261,735.51
  6. Step 6: Final answer
    x = 236,119.26

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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.