Finding the Fourth Proportional to 398,656.11, 598,202.88 and 161,935.23
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Solution
The fourth proportional to 398,656.11, 598,202.88 and 161,935.23 is: 242,991.69
Step by Step Solution
- Step 1: Write the proportion equation
398,656.11 : 598,202.88 = 161,935.23 : x - Step 2: Convert to fraction form
398,656.11/598,202.88 = 161,935.23/x - Step 3: Cross multiply
398,656.11x = 598,202.88 × 161,935.23 - Step 4: Simplify right side
398,656.11x = 96,870,120,959.46 - Step 5: Solve for x
x = 96,870,120,959.46/398,656.11 - Step 6: Final answer
x = 242,991.69
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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.