Finding the Fourth Proportional to 221,343.60, 305,423.36 and 125,839.74
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Solution
The fourth proportional to 221,343.60, 305,423.36 and 125,839.74 is: 173,641.33
Step by Step Solution
- Step 1: Write the proportion equation
221,343.60 : 305,423.36 = 125,839.74 : x - Step 2: Convert to fraction form
221,343.60/305,423.36 = 125,839.74/x - Step 3: Cross multiply
221,343.60x = 305,423.36 × 125,839.74 - Step 4: Simplify right side
221,343.60x = 38,434,396,212.33 - Step 5: Solve for x
x = 38,434,396,212.33/221,343.60 - Step 6: Final answer
x = 173,641.33
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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.