Finding the Fourth Proportional to 283,621.20, 425,431.80 and 125,865.60
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Solution
The fourth proportional to 283,621.20, 425,431.80 and 125,865.60 is: 188,798.40
Step by Step Solution
- Step 1: Write the proportion equation
283,621.20 : 425,431.80 = 125,865.60 : x - Step 2: Convert to fraction form
283,621.20/425,431.80 = 125,865.60/x - Step 3: Cross multiply
283,621.20x = 425,431.80 × 125,865.60 - Step 4: Simplify right side
283,621.20x = 53,547,228,766.08 - Step 5: Solve for x
x = 53,547,228,766.08/283,621.20 - Step 6: Final answer
x = 188,798.40
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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.