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Finding the Fourth Proportional to 254,370.38, 351,035.57 and 139,659.80

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Solution

The fourth proportional to 254,370.38, 351,035.57 and 139,659.80 is: 192,732.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,370.38 : 351,035.57 = 139,659.80 : x
  2. Step 2: Convert to fraction form
    254,370.38/351,035.57 = 139,659.80/x
  3. Step 3: Cross multiply
    254,370.38x = 351,035.57 × 139,659.80
  4. Step 4: Simplify right side
    254,370.38x = 49,025,556,093.06
  5. Step 5: Solve for x
    x = 49,025,556,093.06/254,370.38
  6. Step 6: Final answer
    x = 192,732.96

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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.