Finding the Fourth Proportional to 222,913.35, 307,620.42 and 127,422.09
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Solution
The fourth proportional to 222,913.35, 307,620.42 and 127,422.09 is: 175,842.48
Step by Step Solution
- Step 1: Write the proportion equation
222,913.35 : 307,620.42 = 127,422.09 : x - Step 2: Convert to fraction form
222,913.35/307,620.42 = 127,422.09/x - Step 3: Cross multiply
222,913.35x = 307,620.42 × 127,422.09 - Step 4: Simplify right side
222,913.35x = 39,197,636,843.08 - Step 5: Solve for x
x = 39,197,636,843.08/222,913.35 - Step 6: Final answer
x = 175,842.48
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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.