Finding the Fourth Proportional to 221,208.19, 305,267.60 and 120,606.19
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Solution
The fourth proportional to 221,208.19, 305,267.60 and 120,606.19 is: 166,436.70
Step by Step Solution
- Step 1: Write the proportion equation
221,208.19 : 305,267.60 = 120,606.19 : x - Step 2: Convert to fraction form
221,208.19/305,267.60 = 120,606.19/x - Step 3: Cross multiply
221,208.19x = 305,267.60 × 120,606.19 - Step 4: Simplify right side
221,208.19x = 36,817,161,704.79 - Step 5: Solve for x
x = 36,817,161,704.79/221,208.19 - Step 6: Final answer
x = 166,436.70
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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.