Finding the Fourth Proportional to 228,853.96, 315,837.07 and 126,911.36
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Solution
The fourth proportional to 228,853.96, 315,837.07 and 126,911.36 is: 175,147.99
Step by Step Solution
- Step 1: Write the proportion equation
228,853.96 : 315,837.07 = 126,911.36 : x - Step 2: Convert to fraction form
228,853.96/315,837.07 = 126,911.36/x - Step 3: Cross multiply
228,853.96x = 315,837.07 × 126,911.36 - Step 4: Simplify right side
228,853.96x = 40,083,311,501.72 - Step 5: Solve for x
x = 40,083,311,501.72/228,853.96 - Step 6: Final answer
x = 175,147.99
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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.