Finding the Fourth Proportional to 221,467.70, 332,201.55 and 212,719.70
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Solution
The fourth proportional to 221,467.70, 332,201.55 and 212,719.70 is: 319,079.55
Step by Step Solution
- Step 1: Write the proportion equation
221,467.70 : 332,201.55 = 212,719.70 : x - Step 2: Convert to fraction form
221,467.70/332,201.55 = 212,719.70/x - Step 3: Cross multiply
221,467.70x = 332,201.55 × 212,719.70 - Step 4: Simplify right side
221,467.70x = 70,665,814,055.54 - Step 5: Solve for x
x = 70,665,814,055.54/221,467.70 - Step 6: Final answer
x = 319,079.55
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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.