Finding the Fourth Proportional to 281,699.77, 388,748.74 and 154,372.63
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Solution
The fourth proportional to 281,699.77, 388,748.74 and 154,372.63 is: 213,035.90
Step by Step Solution
- Step 1: Write the proportion equation
281,699.77 : 388,748.74 = 154,372.63 : x - Step 2: Convert to fraction form
281,699.77/388,748.74 = 154,372.63/x - Step 3: Cross multiply
281,699.77x = 388,748.74 × 154,372.63 - Step 4: Simplify right side
281,699.77x = 60,012,165,402.99 - Step 5: Solve for x
x = 60,012,165,402.99/281,699.77 - Step 6: Final answer
x = 213,035.90
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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.