Finding the Fourth Proportional to 400,207.50, 552,279.09 and 218,917.84
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Solution
The fourth proportional to 400,207.50, 552,279.09 and 218,917.84 is: 302,102.65
Step by Step Solution
- Step 1: Write the proportion equation
400,207.50 : 552,279.09 = 218,917.84 : x - Step 2: Convert to fraction form
400,207.50/552,279.09 = 218,917.84/x - Step 3: Cross multiply
400,207.50x = 552,279.09 × 218,917.84 - Step 4: Simplify right side
400,207.50x = 120,903,745,459.97 - Step 5: Solve for x
x = 120,903,745,459.97/400,207.50 - Step 6: Final answer
x = 302,102.65
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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.