Finding the Fourth Proportional to 222,171.20, 306,603.68 and 121,569.28
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Solution
The fourth proportional to 222,171.20, 306,603.68 and 121,569.28 is: 167,769.67
Step by Step Solution
- Step 1: Write the proportion equation
222,171.20 : 306,603.68 = 121,569.28 : x - Step 2: Convert to fraction form
222,171.20/306,603.68 = 121,569.28/x - Step 3: Cross multiply
222,171.20x = 306,603.68 × 121,569.28 - Step 4: Simplify right side
222,171.20x = 37,273,588,622.95 - Step 5: Solve for x
x = 37,273,588,622.95/222,171.20 - Step 6: Final answer
x = 167,769.67
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1.5x scale
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.