Finding the Fourth Proportional to 308,604.36, 462,430.26 and 208,371.72
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Solution
The fourth proportional to 308,604.36, 462,430.26 and 208,371.72 is: 312,235.99
Step by Step Solution
- Step 1: Write the proportion equation
308,604.36 : 462,430.26 = 208,371.72 : x - Step 2: Convert to fraction form
308,604.36/462,430.26 = 208,371.72/x - Step 3: Cross multiply
308,604.36x = 462,430.26 × 208,371.72 - Step 4: Simplify right side
308,604.36x = 96,357,388,656.25 - Step 5: Solve for x
x = 96,357,388,656.25/308,604.36 - Step 6: Final answer
x = 312,235.99
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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.