Finding the Fourth Proportional to 221,449.70, 332,174.55 and 142,717.70
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Solution
The fourth proportional to 221,449.70, 332,174.55 and 142,717.70 is: 214,076.55
Step by Step Solution
- Step 1: Write the proportion equation
221,449.70 : 332,174.55 = 142,717.70 : x - Step 2: Convert to fraction form
221,449.70/332,174.55 = 142,717.70/x - Step 3: Cross multiply
221,449.70x = 332,174.55 × 142,717.70 - Step 4: Simplify right side
221,449.70x = 47,407,187,774.54 - Step 5: Solve for x
x = 47,407,187,774.54/221,449.70 - Step 6: Final answer
x = 214,076.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.