Finding the Fourth Proportional to 250,138.68, 345,195.18 and 136,971.96
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Solution
The fourth proportional to 250,138.68, 345,195.18 and 136,971.96 is: 189,023.39
Step by Step Solution
- Step 1: Write the proportion equation
250,138.68 : 345,195.18 = 136,971.96 : x - Step 2: Convert to fraction form
250,138.68/345,195.18 = 136,971.96/x - Step 3: Cross multiply
250,138.68x = 345,195.18 × 136,971.96 - Step 4: Simplify right side
250,138.68x = 47,282,060,387.15 - Step 5: Solve for x
x = 47,282,060,387.15/250,138.68 - Step 6: Final answer
x = 189,023.39
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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.