Finding the Fourth Proportional to 656,813.40, 985,220.10 and 236,131.80
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Solution
The fourth proportional to 656,813.40, 985,220.10 and 236,131.80 is: 354,197.70
Step by Step Solution
- Step 1: Write the proportion equation
656,813.40 : 985,220.10 = 236,131.80 : x - Step 2: Convert to fraction form
656,813.40/985,220.10 = 236,131.80/x - Step 3: Cross multiply
656,813.40x = 985,220.10 × 236,131.80 - Step 4: Simplify right side
656,813.40x = 232,641,795,609.18 - Step 5: Solve for x
x = 232,641,795,609.18/656,813.40 - Step 6: Final answer
x = 354,197.70
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Similar ratio
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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.