Finding the Fourth Proportional to 306,920.96, 460,380.36 and 138,243.68
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Solution
The fourth proportional to 306,920.96, 460,380.36 and 138,243.68 is: 207,365.03
Step by Step Solution
- Step 1: Write the proportion equation
306,920.96 : 460,380.36 = 138,243.68 : x - Step 2: Convert to fraction form
306,920.96/460,380.36 = 138,243.68/x - Step 3: Cross multiply
306,920.96x = 460,380.36 × 138,243.68 - Step 4: Simplify right side
306,920.96x = 63,644,675,166.12 - Step 5: Solve for x
x = 63,644,675,166.12/306,920.96 - Step 6: Final answer
x = 207,365.03
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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.