Finding the Fourth Proportional to 285,755.10, 428,545.14 and 197,575.26
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Solution
The fourth proportional to 285,755.10, 428,545.14 and 197,575.26 is: 296,302.38
Step by Step Solution
- Step 1: Write the proportion equation
285,755.10 : 428,545.14 = 197,575.26 : x - Step 2: Convert to fraction form
285,755.10/428,545.14 = 197,575.26/x - Step 3: Cross multiply
285,755.10x = 428,545.14 × 197,575.26 - Step 4: Simplify right side
285,755.10x = 84,669,917,457.24 - Step 5: Solve for x
x = 84,669,917,457.24/285,755.10 - Step 6: Final answer
x = 296,302.38
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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.