Finding the Fourth Proportional to 252,269.40, 348,115.90 and 139,093.08
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Solution
The fourth proportional to 252,269.40, 348,115.90 and 139,093.08 is: 191,939.70
Step by Step Solution
- Step 1: Write the proportion equation
252,269.40 : 348,115.90 = 139,093.08 : x - Step 2: Convert to fraction form
252,269.40/348,115.90 = 139,093.08/x - Step 3: Cross multiply
252,269.40x = 348,115.90 × 139,093.08 - Step 4: Simplify right side
252,269.40x = 48,420,512,727.97 - Step 5: Solve for x
x = 48,420,512,727.97/252,269.40 - Step 6: Final answer
x = 191,939.70
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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.