Finding the Fourth Proportional to 222,968.84, 307,695.41 and 120,991.71
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Solution
The fourth proportional to 222,968.84, 307,695.41 and 120,991.71 is: 166,967.70
Step by Step Solution
- Step 1: Write the proportion equation
222,968.84 : 307,695.41 = 120,991.71 : x - Step 2: Convert to fraction form
222,968.84/307,695.41 = 120,991.71/x - Step 3: Cross multiply
222,968.84x = 307,695.41 × 120,991.71 - Step 4: Simplify right side
222,968.84x = 37,228,593,815.05 - Step 5: Solve for x
x = 37,228,593,815.05/222,968.84 - Step 6: Final answer
x = 166,967.70
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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.