Finding the Fourth Proportional to 222,187.50, 306,618.75 and 121,585.50
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Solution
The fourth proportional to 222,187.50, 306,618.75 and 121,585.50 is: 167,787.99
Step by Step Solution
- Step 1: Write the proportion equation
222,187.50 : 306,618.75 = 121,585.50 : x - Step 2: Convert to fraction form
222,187.50/306,618.75 = 121,585.50/x - Step 3: Cross multiply
222,187.50x = 306,618.75 × 121,585.50 - Step 4: Simplify right side
222,187.50x = 37,280,394,028.13 - Step 5: Solve for x
x = 37,280,394,028.13/222,187.50 - Step 6: Final answer
x = 167,787.99
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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.