Finding the Fourth Proportional to 222,778.10, 307,450.07 and 127,282.75
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Solution
The fourth proportional to 222,778.10, 307,450.07 and 127,282.75 is: 175,659.50
Step by Step Solution
- Step 1: Write the proportion equation
222,778.10 : 307,450.07 = 127,282.75 : x - Step 2: Convert to fraction form
222,778.10/307,450.07 = 127,282.75/x - Step 3: Cross multiply
222,778.10x = 307,450.07 × 127,282.75 - Step 4: Simplify right side
222,778.10x = 39,133,090,397.29 - Step 5: Solve for x
x = 39,133,090,397.29/222,778.10 - Step 6: Final answer
x = 175,659.50
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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.