Finding the Fourth Proportional to 300,991.14, 415,420.68 and 228,633.66
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Solution
The fourth proportional to 300,991.14, 415,420.68 and 228,633.66 is: 315,554.64
Step by Step Solution
- Step 1: Write the proportion equation
300,991.14 : 415,420.68 = 228,633.66 : x - Step 2: Convert to fraction form
300,991.14/415,420.68 = 228,633.66/x - Step 3: Cross multiply
300,991.14x = 415,420.68 × 228,633.66 - Step 4: Simplify right side
300,991.14x = 94,979,150,508.09 - Step 5: Solve for x
x = 94,979,150,508.09/300,991.14 - Step 6: Final answer
x = 315,554.64
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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.