Finding the Fourth Proportional to 221,236.60, 305,332.71 and 125,757.64
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Solution
The fourth proportional to 221,236.60, 305,332.71 and 125,757.64 is: 173,560.43
Step by Step Solution
- Step 1: Write the proportion equation
221,236.60 : 305,332.71 = 125,757.64 : x - Step 2: Convert to fraction form
221,236.60/305,332.71 = 125,757.64/x - Step 3: Cross multiply
221,236.60x = 305,332.71 × 125,757.64 - Step 4: Simplify right side
221,236.60x = 38,397,919,497.74 - Step 5: Solve for x
x = 38,397,919,497.74/221,236.60 - Step 6: Final answer
x = 173,560.43
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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.