Finding the Fourth Proportional to 213,356.63, 294,436.42 and 117,866.75
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Solution
The fourth proportional to 213,356.63, 294,436.42 and 117,866.75 is: 162,658.46
Step by Step Solution
- Step 1: Write the proportion equation
213,356.63 : 294,436.42 = 117,866.75 : x - Step 2: Convert to fraction form
213,356.63/294,436.42 = 117,866.75/x - Step 3: Cross multiply
213,356.63x = 294,436.42 × 117,866.75 - Step 4: Simplify right side
213,356.63x = 34,704,262,140.19 - Step 5: Solve for x
x = 34,704,262,140.19/213,356.63 - Step 6: Final answer
x = 162,658.46
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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.