Finding the Fourth Proportional to 317,809.70, 438,468.75 and 181,794.09
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Solution
The fourth proportional to 317,809.70, 438,468.75 and 181,794.09 is: 250,813.71
Step by Step Solution
- Step 1: Write the proportion equation
317,809.70 : 438,468.75 = 181,794.09 : x - Step 2: Convert to fraction form
317,809.70/438,468.75 = 181,794.09/x - Step 3: Cross multiply
317,809.70x = 438,468.75 × 181,794.09 - Step 4: Simplify right side
317,809.70x = 79,711,027,399.69 - Step 5: Solve for x
x = 79,711,027,399.69/317,809.70 - Step 6: Final answer
x = 250,813.71
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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.