Finding the Fourth Proportional to 215,905.68, 324,139.17 and 166,020.81
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Solution
The fourth proportional to 215,905.68, 324,139.17 and 166,020.81 is: 249,247.02
Step by Step Solution
- Step 1: Write the proportion equation
215,905.68 : 324,139.17 = 166,020.81 : x - Step 2: Convert to fraction form
215,905.68/324,139.17 = 166,020.81/x - Step 3: Cross multiply
215,905.68x = 324,139.17 × 166,020.81 - Step 4: Simplify right side
215,905.68x = 53,813,846,726.02 - Step 5: Solve for x
x = 53,813,846,726.02/215,905.68 - Step 6: Final answer
x = 249,247.02
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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.