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Finding the Fourth Proportional to 351,542.14, 485,125.72 and 190,393.50

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Solution

The fourth proportional to 351,542.14, 485,125.72 and 190,393.50 is: 262,741.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,542.14 : 485,125.72 = 190,393.50 : x
  2. Step 2: Convert to fraction form
    351,542.14/485,125.72 = 190,393.50/x
  3. Step 3: Cross multiply
    351,542.14x = 485,125.72 × 190,393.50
  4. Step 4: Simplify right side
    351,542.14x = 92,364,783,770.82
  5. Step 5: Solve for x
    x = 92,364,783,770.82/351,542.14
  6. Step 6: Final answer
    x = 262,741.71

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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.