Finding the Fourth Proportional to 216,215.15, 324,353.72 and 66,467.99
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Solution
The fourth proportional to 216,215.15, 324,353.72 and 66,467.99 is: 99,711.51
Step by Step Solution
- Step 1: Write the proportion equation
216,215.15 : 324,353.72 = 66,467.99 : x - Step 2: Convert to fraction form
216,215.15/324,353.72 = 66,467.99/x - Step 3: Cross multiply
216,215.15x = 324,353.72 × 66,467.99 - Step 4: Simplify right side
216,215.15x = 21,559,139,817.42 - Step 5: Solve for x
x = 21,559,139,817.42/216,215.15 - Step 6: Final answer
x = 99,711.51
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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.