Finding the Fourth Proportional to 291,189.87, 401,841.21 and 163,865.48
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Solution
The fourth proportional to 291,189.87, 401,841.21 and 163,865.48 is: 226,133.90
Step by Step Solution
- Step 1: Write the proportion equation
291,189.87 : 401,841.21 = 163,865.48 : x - Step 2: Convert to fraction form
291,189.87/401,841.21 = 163,865.48/x - Step 3: Cross multiply
291,189.87x = 401,841.21 × 163,865.48 - Step 4: Simplify right side
291,189.87x = 65,847,900,751.22 - Step 5: Solve for x
x = 65,847,900,751.22/291,189.87 - Step 6: Final answer
x = 226,133.90
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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.