Finding the Fourth Proportional to 138,804.80, 208,214.80 and 44,028.14
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Solution
The fourth proportional to 138,804.80, 208,214.80 and 44,028.14 is: 66,044.62
Step by Step Solution
- Step 1: Write the proportion equation
138,804.80 : 208,214.80 = 44,028.14 : x - Step 2: Convert to fraction form
138,804.80/208,214.80 = 44,028.14/x - Step 3: Cross multiply
138,804.80x = 208,214.80 × 44,028.14 - Step 4: Simplify right side
138,804.80x = 9,167,310,364.47 - Step 5: Solve for x
x = 9,167,310,364.47/138,804.80 - Step 6: Final answer
x = 66,044.62
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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.