Finding the Fourth Proportional to 221,495.90, 305,558.07 and 160,972.70
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Solution
The fourth proportional to 221,495.90, 305,558.07 and 160,972.70 is: 222,065.09
Step by Step Solution
- Step 1: Write the proportion equation
221,495.90 : 305,558.07 = 160,972.70 : x - Step 2: Convert to fraction form
221,495.90/305,558.07 = 160,972.70/x - Step 3: Cross multiply
221,495.90x = 305,558.07 × 160,972.70 - Step 4: Simplify right side
221,495.90x = 49,186,507,534.69 - Step 5: Solve for x
x = 49,186,507,534.69/221,495.90 - Step 6: Final answer
x = 222,065.09
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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.