Finding the Fourth Proportional to 207,894.28, 286,938.62 and 131,364.79
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Solution
The fourth proportional to 207,894.28, 286,938.62 and 131,364.79 is: 181,311.53
Step by Step Solution
- Step 1: Write the proportion equation
207,894.28 : 286,938.62 = 131,364.79 : x - Step 2: Convert to fraction form
207,894.28/286,938.62 = 131,364.79/x - Step 3: Cross multiply
207,894.28x = 286,938.62 × 131,364.79 - Step 4: Simplify right side
207,894.28x = 37,693,630,902.37 - Step 5: Solve for x
x = 37,693,630,902.37/207,894.28 - Step 6: Final answer
x = 181,311.53
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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.