Finding the Fourth Proportional to 257,153.10, 385,791.24 and 107,310.03
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Solution
The fourth proportional to 257,153.10, 385,791.24 and 107,310.03 is: 160,990.75
Step by Step Solution
- Step 1: Write the proportion equation
257,153.10 : 385,791.24 = 107,310.03 : x - Step 2: Convert to fraction form
257,153.10/385,791.24 = 107,310.03/x - Step 3: Cross multiply
257,153.10x = 385,791.24 × 107,310.03 - Step 4: Simplify right side
257,153.10x = 41,399,269,538.14 - Step 5: Solve for x
x = 41,399,269,538.14/257,153.10 - Step 6: Final answer
x = 160,990.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.