Finding the Fourth Proportional to 246,175.18, 339,740.40 and 138,755.32
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Solution
The fourth proportional to 246,175.18, 339,740.40 and 138,755.32 is: 191,492.85
Step by Step Solution
- Step 1: Write the proportion equation
246,175.18 : 339,740.40 = 138,755.32 : x - Step 2: Convert to fraction form
246,175.18/339,740.40 = 138,755.32/x - Step 3: Cross multiply
246,175.18x = 339,740.40 × 138,755.32 - Step 4: Simplify right side
246,175.18x = 47,140,787,918.93 - Step 5: Solve for x
x = 47,140,787,918.93/246,175.18 - Step 6: Final answer
x = 191,492.85
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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.