Finding the Fourth Proportional to 283,517.40, 425,276.10 and 171,324.30
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Solution
The fourth proportional to 283,517.40, 425,276.10 and 171,324.30 is: 256,986.45
Step by Step Solution
- Step 1: Write the proportion equation
283,517.40 : 425,276.10 = 171,324.30 : x - Step 2: Convert to fraction form
283,517.40/425,276.10 = 171,324.30/x - Step 3: Cross multiply
283,517.40x = 425,276.10 × 171,324.30 - Step 4: Simplify right side
283,517.40x = 72,860,130,139.23 - Step 5: Solve for x
x = 72,860,130,139.23/283,517.40 - Step 6: Final answer
x = 256,986.45
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Double scale
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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.