Finding the Fourth Proportional to 221,186.36, 305,223.18 and 145,836.92
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Solution
The fourth proportional to 221,186.36, 305,223.18 and 145,836.92 is: 201,245.72
Step by Step Solution
- Step 1: Write the proportion equation
221,186.36 : 305,223.18 = 145,836.92 : x - Step 2: Convert to fraction form
221,186.36/305,223.18 = 145,836.92/x - Step 3: Cross multiply
221,186.36x = 305,223.18 × 145,836.92 - Step 4: Simplify right side
221,186.36x = 44,512,808,483.81 - Step 5: Solve for x
x = 44,512,808,483.81/221,186.36 - Step 6: Final answer
x = 201,245.72
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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.