Finding the Fourth Proportional to 250,197.86, 345,187.36 and 142,690.62
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Solution
The fourth proportional to 250,197.86, 345,187.36 and 142,690.62 is: 196,864.19
Step by Step Solution
- Step 1: Write the proportion equation
250,197.86 : 345,187.36 = 142,690.62 : x - Step 2: Convert to fraction form
250,197.86/345,187.36 = 142,690.62/x - Step 3: Cross multiply
250,197.86x = 345,187.36 × 142,690.62 - Step 4: Simplify right side
250,197.86x = 49,254,998,414.56 - Step 5: Solve for x
x = 49,254,998,414.56/250,197.86 - Step 6: Final answer
x = 196,864.19
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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.