Finding the Fourth Proportional to 245,817.18, 339,260.04 and 138,408.14
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Solution
The fourth proportional to 245,817.18, 339,260.04 and 138,408.14 is: 191,021.44
Step by Step Solution
- Step 1: Write the proportion equation
245,817.18 : 339,260.04 = 138,408.14 : x - Step 2: Convert to fraction form
245,817.18/339,260.04 = 138,408.14/x - Step 3: Cross multiply
245,817.18x = 339,260.04 × 138,408.14 - Step 4: Simplify right side
245,817.18x = 46,956,351,112.73 - Step 5: Solve for x
x = 46,956,351,112.73/245,817.18 - Step 6: Final answer
x = 191,021.44
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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.