Finding the Fourth Proportional to 221,316.84, 305,415.80 and 125,823.56
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Solution
The fourth proportional to 221,316.84, 305,415.80 and 125,823.56 is: 173,635.69
Step by Step Solution
- Step 1: Write the proportion equation
221,316.84 : 305,415.80 = 125,823.56 : x - Step 2: Convert to fraction form
221,316.84/305,415.80 = 125,823.56/x - Step 3: Cross multiply
221,316.84x = 305,415.80 × 125,823.56 - Step 4: Simplify right side
221,316.84x = 38,428,503,236.25 - Step 5: Solve for x
x = 38,428,503,236.25/221,316.84 - Step 6: Final answer
x = 173,635.69
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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.