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Finding the Fourth Proportional to 251,744.94, 347,410.35 and 138,568.50

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Solution

The fourth proportional to 251,744.94, 347,410.35 and 138,568.50 is: 191,225.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,744.94 : 347,410.35 = 138,568.50 : x
  2. Step 2: Convert to fraction form
    251,744.94/347,410.35 = 138,568.50/x
  3. Step 3: Cross multiply
    251,744.94x = 347,410.35 × 138,568.50
  4. Step 4: Simplify right side
    251,744.94x = 48,140,131,083.98
  5. Step 5: Solve for x
    x = 48,140,131,083.98/251,744.94
  6. Step 6: Final answer
    x = 191,225.81

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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.