Finding the Fourth Proportional to 216,889.94, 299,305.17 and 121,396.62
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Solution
The fourth proportional to 216,889.94, 299,305.17 and 121,396.62 is: 167,525.69
Step by Step Solution
- Step 1: Write the proportion equation
216,889.94 : 299,305.17 = 121,396.62 : x - Step 2: Convert to fraction form
216,889.94/299,305.17 = 121,396.62/x - Step 3: Cross multiply
216,889.94x = 299,305.17 × 121,396.62 - Step 4: Simplify right side
216,889.94x = 36,334,635,986.53 - Step 5: Solve for x
x = 36,334,635,986.53/216,889.94 - Step 6: Final answer
x = 167,525.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.