Finding the Fourth Proportional to 338,517.15, 507,026.97 and 138,230.19
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Solution
The fourth proportional to 338,517.15, 507,026.97 and 138,230.19 is: 207,039.54
Step by Step Solution
- Step 1: Write the proportion equation
338,517.15 : 507,026.97 = 138,230.19 : x - Step 2: Convert to fraction form
338,517.15/507,026.97 = 138,230.19/x - Step 3: Cross multiply
338,517.15x = 507,026.97 × 138,230.19 - Step 4: Simplify right side
338,517.15x = 70,086,434,398.22 - Step 5: Solve for x
x = 70,086,434,398.22/338,517.15 - Step 6: Final answer
x = 207,039.54
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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.