Finding the Fourth Proportional to 245,936.58, 339,408.99 and 137,057.82
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Solution
The fourth proportional to 245,936.58, 339,408.99 and 137,057.82 is: 189,148.99
Step by Step Solution
- Step 1: Write the proportion equation
245,936.58 : 339,408.99 = 137,057.82 : x - Step 2: Convert to fraction form
245,936.58/339,408.99 = 137,057.82/x - Step 3: Cross multiply
245,936.58x = 339,408.99 × 137,057.82 - Step 4: Simplify right side
245,936.58x = 46,518,656,257.80 - Step 5: Solve for x
x = 46,518,656,257.80/245,936.58 - Step 6: Final answer
x = 189,148.99
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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.