Finding the Fourth Proportional to 395,990.13, 546,463.77 and 214,701.50
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Solution
The fourth proportional to 395,990.13, 546,463.77 and 214,701.50 is: 296,286.65
Step by Step Solution
- Step 1: Write the proportion equation
395,990.13 : 546,463.77 = 214,701.50 : x - Step 2: Convert to fraction form
395,990.13/546,463.77 = 214,701.50/x - Step 3: Cross multiply
395,990.13x = 546,463.77 × 214,701.50 - Step 4: Simplify right side
395,990.13x = 117,326,591,675.68 - Step 5: Solve for x
x = 117,326,591,675.68/395,990.13 - Step 6: Final answer
x = 296,286.65
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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.