Finding the Fourth Proportional to 226,045.68, 311,911.20 and 135,380.40
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Solution
The fourth proportional to 226,045.68, 311,911.20 and 135,380.40 is: 186,805.88
Step by Step Solution
- Step 1: Write the proportion equation
226,045.68 : 311,911.20 = 135,380.40 : x - Step 2: Convert to fraction form
226,045.68/311,911.20 = 135,380.40/x - Step 3: Cross multiply
226,045.68x = 311,911.20 × 135,380.40 - Step 4: Simplify right side
226,045.68x = 42,226,663,020.48 - Step 5: Solve for x
x = 42,226,663,020.48/226,045.68 - Step 6: Final answer
x = 186,805.88
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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.