Finding the Fourth Proportional to 217,179.24, 299,719.35 and 121,716.69
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Solution
The fourth proportional to 217,179.24, 299,719.35 and 121,716.69 is: 167,975.76
Step by Step Solution
- Step 1: Write the proportion equation
217,179.24 : 299,719.35 = 121,716.69 : x - Step 2: Convert to fraction form
217,179.24/299,719.35 = 121,716.69/x - Step 3: Cross multiply
217,179.24x = 299,719.35 × 121,716.69 - Step 4: Simplify right side
217,179.24x = 36,480,847,210.95 - Step 5: Solve for x
x = 36,480,847,210.95/217,179.24 - Step 6: Final answer
x = 167,975.76
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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.