Finding the Fourth Proportional to 352,721.62, 486,424.26 and 272,021.32
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Solution
The fourth proportional to 352,721.62, 486,424.26 and 272,021.32 is: 375,133.71
Step by Step Solution
- Step 1: Write the proportion equation
352,721.62 : 486,424.26 = 272,021.32 : x - Step 2: Convert to fraction form
352,721.62/486,424.26 = 272,021.32/x - Step 3: Cross multiply
352,721.62x = 486,424.26 × 272,021.32 - Step 4: Simplify right side
352,721.62x = 132,317,769,285.22 - Step 5: Solve for x
x = 132,317,769,285.22/352,721.62 - Step 6: Final answer
x = 375,133.71
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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.