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Finding the Fourth Proportional to 251,506.99, 347,081.94 and 136,786.72

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Solution

The fourth proportional to 251,506.99, 347,081.94 and 136,786.72 is: 188,766.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,506.99 : 347,081.94 = 136,786.72 : x
  2. Step 2: Convert to fraction form
    251,506.99/347,081.94 = 136,786.72/x
  3. Step 3: Cross multiply
    251,506.99x = 347,081.94 × 136,786.72
  4. Step 4: Simplify right side
    251,506.99x = 47,476,200,143.84
  5. Step 5: Solve for x
    x = 47,476,200,143.84/251,506.99
  6. Step 6: Final answer
    x = 188,766.92

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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.