Finding the Fourth Proportional to 196,138.14, 294,250.95 and 71,479.14
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Solution
The fourth proportional to 196,138.14, 294,250.95 and 71,479.14 is: 107,234.65
Step by Step Solution
- Step 1: Write the proportion equation
196,138.14 : 294,250.95 = 71,479.14 : x - Step 2: Convert to fraction form
196,138.14/294,250.95 = 71,479.14/x - Step 3: Cross multiply
196,138.14x = 294,250.95 × 71,479.14 - Step 4: Simplify right side
196,138.14x = 21,032,804,850.18 - Step 5: Solve for x
x = 21,032,804,850.18/196,138.14 - Step 6: Final answer
x = 107,234.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.