Finding the Fourth Proportional to 253,271.92, 378,940.65 and 221,446.99
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Solution
The fourth proportional to 253,271.92, 378,940.65 and 221,446.99 is: 331,324.79
Step by Step Solution
- Step 1: Write the proportion equation
253,271.92 : 378,940.65 = 221,446.99 : x - Step 2: Convert to fraction form
253,271.92/378,940.65 = 221,446.99/x - Step 3: Cross multiply
253,271.92x = 378,940.65 × 221,446.99 - Step 4: Simplify right side
253,271.92x = 83,915,266,331.14 - Step 5: Solve for x
x = 83,915,266,331.14/253,271.92 - Step 6: Final answer
x = 331,324.79
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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.