Finding the Fourth Proportional to 222,912.10, 307,618.68 and 127,420.84
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Solution
The fourth proportional to 222,912.10, 307,618.68 and 127,420.84 is: 175,840.75
Step by Step Solution
- Step 1: Write the proportion equation
222,912.10 : 307,618.68 = 127,420.84 : x - Step 2: Convert to fraction form
222,912.10/307,618.68 = 127,420.84/x - Step 3: Cross multiply
222,912.10x = 307,618.68 × 127,420.84 - Step 4: Simplify right side
222,912.10x = 39,197,030,605.29 - Step 5: Solve for x
x = 39,197,030,605.29/222,912.10 - Step 6: Final answer
x = 175,840.75
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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.