Finding the Fourth Proportional to 216,098.42, 324,195.75 and 66,351.74
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Solution
The fourth proportional to 216,098.42, 324,195.75 and 66,351.74 is: 99,542.38
Step by Step Solution
- Step 1: Write the proportion equation
216,098.42 : 324,195.75 = 66,351.74 : x - Step 2: Convert to fraction form
216,098.42/324,195.75 = 66,351.74/x - Step 3: Cross multiply
216,098.42x = 324,195.75 × 66,351.74 - Step 4: Simplify right side
216,098.42x = 21,510,950,492.13 - Step 5: Solve for x
x = 21,510,950,492.13/216,098.42 - Step 6: Final answer
x = 99,542.38
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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.