Finding the Fourth Proportional to 283,442.40, 425,209.44 and 83,782.80
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Solution
The fourth proportional to 283,442.40, 425,209.44 and 83,782.80 is: 125,687.75
Step by Step Solution
- Step 1: Write the proportion equation
283,442.40 : 425,209.44 = 83,782.80 : x - Step 2: Convert to fraction form
283,442.40/425,209.44 = 83,782.80/x - Step 3: Cross multiply
283,442.40x = 425,209.44 × 83,782.80 - Step 4: Simplify right side
283,442.40x = 35,625,237,469.63 - Step 5: Solve for x
x = 35,625,237,469.63/283,442.40 - Step 6: Final answer
x = 125,687.75
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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.