Finding the Fourth Proportional to 315,662.69, 435,623.73 and 172,424.99
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Solution
The fourth proportional to 315,662.69, 435,623.73 and 172,424.99 is: 237,951.52
Step by Step Solution
- Step 1: Write the proportion equation
315,662.69 : 435,623.73 = 172,424.99 : x - Step 2: Convert to fraction form
315,662.69/435,623.73 = 172,424.99/x - Step 3: Cross multiply
315,662.69x = 435,623.73 × 172,424.99 - Step 4: Simplify right side
315,662.69x = 75,112,417,289.01 - Step 5: Solve for x
x = 75,112,417,289.01/315,662.69 - Step 6: Final answer
x = 237,951.52
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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.