Finding the Fourth Proportional to 287,986.05, 397,307.08 and 180,516.87
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Solution
The fourth proportional to 287,986.05, 397,307.08 and 180,516.87 is: 249,042.03
Step by Step Solution
- Step 1: Write the proportion equation
287,986.05 : 397,307.08 = 180,516.87 : x - Step 2: Convert to fraction form
287,986.05/397,307.08 = 180,516.87/x - Step 3: Cross multiply
287,986.05x = 397,307.08 × 180,516.87 - Step 4: Simplify right side
287,986.05x = 71,720,631,052.42 - Step 5: Solve for x
x = 71,720,631,052.42/287,986.05 - Step 6: Final answer
x = 249,042.03
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1.5x scale
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.