Finding the Fourth Proportional to 217,249.12, 299,803.74 and 120,452.68
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Solution
The fourth proportional to 217,249.12, 299,803.74 and 120,452.68 is: 166,224.67
Step by Step Solution
- Step 1: Write the proportion equation
217,249.12 : 299,803.74 = 120,452.68 : x - Step 2: Convert to fraction form
217,249.12/299,803.74 = 120,452.68/x - Step 3: Cross multiply
217,249.12x = 299,803.74 × 120,452.68 - Step 4: Simplify right side
217,249.12x = 36,112,163,957.02 - Step 5: Solve for x
x = 36,112,163,957.02/217,249.12 - Step 6: Final answer
x = 166,224.67
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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.