Finding the Fourth Proportional to 245,795.09, 339,203.57 and 138,368.97
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Solution
The fourth proportional to 245,795.09, 339,203.57 and 138,368.97 is: 190,952.75
Step by Step Solution
- Step 1: Write the proportion equation
245,795.09 : 339,203.57 = 138,368.97 : x - Step 2: Convert to fraction form
245,795.09/339,203.57 = 138,368.97/x - Step 3: Cross multiply
245,795.09x = 339,203.57 × 138,368.97 - Step 4: Simplify right side
245,795.09x = 46,935,247,909.38 - Step 5: Solve for x
x = 46,935,247,909.38/245,795.09 - Step 6: Final answer
x = 190,952.75
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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.