Finding the Fourth Proportional to 221,447.70, 332,171.55 and 212,699.70
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Solution
The fourth proportional to 221,447.70, 332,171.55 and 212,699.70 is: 319,049.55
Step by Step Solution
- Step 1: Write the proportion equation
221,447.70 : 332,171.55 = 212,699.70 : x - Step 2: Convert to fraction form
221,447.70/332,171.55 = 212,699.70/x - Step 3: Cross multiply
221,447.70x = 332,171.55 × 212,699.70 - Step 4: Simplify right side
221,447.70x = 70,652,789,033.54 - Step 5: Solve for x
x = 70,652,789,033.54/221,447.70 - Step 6: Final answer
x = 319,049.55
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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.