Finding the Fourth Proportional to 222,972.12, 307,698.48 and 122,370.12
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Solution
The fourth proportional to 222,972.12, 307,698.48 and 122,370.12 is: 168,869.09
Step by Step Solution
- Step 1: Write the proportion equation
222,972.12 : 307,698.48 = 122,370.12 : x - Step 2: Convert to fraction form
222,972.12/307,698.48 = 122,370.12/x - Step 3: Cross multiply
222,972.12x = 307,698.48 × 122,370.12 - Step 4: Simplify right side
222,972.12x = 37,653,099,921.42 - Step 5: Solve for x
x = 37,653,099,921.42/222,972.12 - Step 6: Final answer
x = 168,869.09
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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.