Finding the Fourth Proportional to 309,553.97, 427,027.19 and 202,186.85
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Solution
The fourth proportional to 309,553.97, 427,027.19 and 202,186.85 is: 278,915.11
Step by Step Solution
- Step 1: Write the proportion equation
309,553.97 : 427,027.19 = 202,186.85 : x - Step 2: Convert to fraction form
309,553.97/427,027.19 = 202,186.85/x - Step 3: Cross multiply
309,553.97x = 427,027.19 × 202,186.85 - Step 4: Simplify right side
309,553.97x = 86,339,279,264.38 - Step 5: Solve for x
x = 86,339,279,264.38/309,553.97 - Step 6: Final answer
x = 278,915.11
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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.