Finding the Fourth Proportional to 220,368.21, 304,173.11 and 143,899.19
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Solution
The fourth proportional to 220,368.21, 304,173.11 and 143,899.19 is: 198,623.31
Step by Step Solution
- Step 1: Write the proportion equation
220,368.21 : 304,173.11 = 143,899.19 : x - Step 2: Convert to fraction form
220,368.21/304,173.11 = 143,899.19/x - Step 3: Cross multiply
220,368.21x = 304,173.11 × 143,899.19 - Step 4: Simplify right side
220,368.21x = 43,770,264,148.78 - Step 5: Solve for x
x = 43,770,264,148.78/220,368.21 - Step 6: Final answer
x = 198,623.31
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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.