Finding the Fourth Proportional to 216,678.56, 324,959.49 and 76,418.96
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Solution
The fourth proportional to 216,678.56, 324,959.49 and 76,418.96 is: 114,607.86
Step by Step Solution
- Step 1: Write the proportion equation
216,678.56 : 324,959.49 = 76,418.96 : x - Step 2: Convert to fraction form
216,678.56/324,959.49 = 76,418.96/x - Step 3: Cross multiply
216,678.56x = 324,959.49 × 76,418.96 - Step 4: Simplify right side
216,678.56x = 24,833,064,643.13 - Step 5: Solve for x
x = 24,833,064,643.13/216,678.56 - Step 6: Final answer
x = 114,607.86
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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.