Finding the Fourth Proportional to 216,536.13, 324,869.81 and 98,175.69
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Solution
The fourth proportional to 216,536.13, 324,869.81 and 98,175.69 is: 147,293.28
Step by Step Solution
- Step 1: Write the proportion equation
216,536.13 : 324,869.81 = 98,175.69 : x - Step 2: Convert to fraction form
216,536.13/324,869.81 = 98,175.69/x - Step 3: Cross multiply
216,536.13x = 324,869.81 × 98,175.69 - Step 4: Simplify right side
216,536.13x = 31,894,317,266.04 - Step 5: Solve for x
x = 31,894,317,266.04/216,536.13 - Step 6: Final answer
x = 147,293.28
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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.