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Finding the Fourth Proportional to 248,303.58, 342,635.22 and 139,382.96

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Solution

The fourth proportional to 248,303.58, 342,635.22 and 139,382.96 is: 192,335.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,303.58 : 342,635.22 = 139,382.96 : x
  2. Step 2: Convert to fraction form
    248,303.58/342,635.22 = 139,382.96/x
  3. Step 3: Cross multiply
    248,303.58x = 342,635.22 × 139,382.96
  4. Step 4: Simplify right side
    248,303.58x = 47,757,511,163.85
  5. Step 5: Solve for x
    x = 47,757,511,163.85/248,303.58
  6. Step 6: Final answer
    x = 192,335.17

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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.