Finding the Fourth Proportional to 217,689.44, 326,660.27 and 91,318.50
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Solution
The fourth proportional to 217,689.44, 326,660.27 and 91,318.50 is: 137,030.65
Step by Step Solution
- Step 1: Write the proportion equation
217,689.44 : 326,660.27 = 91,318.50 : x - Step 2: Convert to fraction form
217,689.44/326,660.27 = 91,318.50/x - Step 3: Cross multiply
217,689.44x = 326,660.27 × 91,318.50 - Step 4: Simplify right side
217,689.44x = 29,830,125,409.40 - Step 5: Solve for x
x = 29,830,125,409.40/217,689.44 - Step 6: Final answer
x = 137,030.65
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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.