Finding the Fourth Proportional to 215,940.11, 323,969.01 and 66,177.08
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Solution
The fourth proportional to 215,940.11, 323,969.01 and 66,177.08 is: 99,283.65
Step by Step Solution
- Step 1: Write the proportion equation
215,940.11 : 323,969.01 = 66,177.08 : x - Step 2: Convert to fraction form
215,940.11/323,969.01 = 66,177.08/x - Step 3: Cross multiply
215,940.11x = 323,969.01 × 66,177.08 - Step 4: Simplify right side
215,940.11x = 21,439,321,472.45 - Step 5: Solve for x
x = 21,439,321,472.45/215,940.11 - Step 6: Final answer
x = 99,283.65
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1.5x scale
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.