Finding the Fourth Proportional to 221,151.84, 305,189.55 and 120,549.84
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Solution
The fourth proportional to 221,151.84, 305,189.55 and 120,549.84 is: 166,358.79
Step by Step Solution
- Step 1: Write the proportion equation
221,151.84 : 305,189.55 = 120,549.84 : x - Step 2: Convert to fraction form
221,151.84/305,189.55 = 120,549.84/x - Step 3: Cross multiply
221,151.84x = 305,189.55 × 120,549.84 - Step 4: Simplify right side
221,151.84x = 36,790,551,422.17 - Step 5: Solve for x
x = 36,790,551,422.17/221,151.84 - Step 6: Final answer
x = 166,358.79
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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.