Finding the Fourth Proportional to 202,861.20, 304,477.80 and 103,090.80
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Solution
The fourth proportional to 202,861.20, 304,477.80 and 103,090.80 is: 154,730.72
Step by Step Solution
- Step 1: Write the proportion equation
202,861.20 : 304,477.80 = 103,090.80 : x - Step 2: Convert to fraction form
202,861.20/304,477.80 = 103,090.80/x - Step 3: Cross multiply
202,861.20x = 304,477.80 × 103,090.80 - Step 4: Simplify right side
202,861.20x = 31,388,859,984.24 - Step 5: Solve for x
x = 31,388,859,984.24/202,861.20 - Step 6: Final answer
x = 154,730.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.