Finding the Fourth Proportional to 245,894.94, 339,331.68 and 138,466.26
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Solution
The fourth proportional to 245,894.94, 339,331.68 and 138,466.26 is: 191,081.56
Step by Step Solution
- Step 1: Write the proportion equation
245,894.94 : 339,331.68 = 138,466.26 : x - Step 2: Convert to fraction form
245,894.94/339,331.68 = 138,466.26/x - Step 3: Cross multiply
245,894.94x = 339,331.68 × 138,466.26 - Step 4: Simplify right side
245,894.94x = 46,985,988,629.12 - Step 5: Solve for x
x = 46,985,988,629.12/245,894.94 - Step 6: Final answer
x = 191,081.56
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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.