Finding the Fourth Proportional to 664,896.80, 997,319.60 and 221,664.80
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Solution
The fourth proportional to 664,896.80, 997,319.60 and 221,664.80 is: 332,488.67
Step by Step Solution
- Step 1: Write the proportion equation
664,896.80 : 997,319.60 = 221,664.80 : x - Step 2: Convert to fraction form
664,896.80/997,319.60 = 221,664.80/x - Step 3: Cross multiply
664,896.80x = 997,319.60 × 221,664.80 - Step 4: Simplify right side
664,896.80x = 221,070,649,670.08 - Step 5: Solve for x
x = 221,070,649,670.08/664,896.80 - Step 6: Final answer
x = 332,488.67
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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.