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Finding the Fourth Proportional to 251,674.62, 347,311.04 and 138,497.37

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Solution

The fourth proportional to 251,674.62, 347,311.04 and 138,497.37 is: 191,126.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,674.62 : 347,311.04 = 138,497.37 : x
  2. Step 2: Convert to fraction form
    251,674.62/347,311.04 = 138,497.37/x
  3. Step 3: Cross multiply
    251,674.62x = 347,311.04 × 138,497.37
  4. Step 4: Simplify right side
    251,674.62x = 48,101,666,481.58
  5. Step 5: Solve for x
    x = 48,101,666,481.58/251,674.62
  6. Step 6: Final answer
    x = 191,126.41

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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.