Finding the Fourth Proportional to 386,246.22, 532,914.12 and 231,135.06
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Solution
The fourth proportional to 386,246.22, 532,914.12 and 231,135.06 is: 318,903.15
Step by Step Solution
- Step 1: Write the proportion equation
386,246.22 : 532,914.12 = 231,135.06 : x - Step 2: Convert to fraction form
386,246.22/532,914.12 = 231,135.06/x - Step 3: Cross multiply
386,246.22x = 532,914.12 × 231,135.06 - Step 4: Simplify right side
386,246.22x = 123,175,137,101.05 - Step 5: Solve for x
x = 123,175,137,101.05/386,246.22 - Step 6: Final answer
x = 318,903.15
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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.