Finding the Fourth Proportional to 250,147.68, 345,207.60 and 136,980.96
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Solution
The fourth proportional to 250,147.68, 345,207.60 and 136,980.96 is: 189,035.81
Step by Step Solution
- Step 1: Write the proportion equation
250,147.68 : 345,207.60 = 136,980.96 : x - Step 2: Convert to fraction form
250,147.68/345,207.60 = 136,980.96/x - Step 3: Cross multiply
250,147.68x = 345,207.60 × 136,980.96 - Step 4: Simplify right side
250,147.68x = 47,286,868,447.30 - Step 5: Solve for x
x = 47,286,868,447.30/250,147.68 - Step 6: Final answer
x = 189,035.81
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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.