Finding the Fourth Proportional to 283.80, 424.80 and 202.80
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Solution
The fourth proportional to 283.80, 424.80 and 202.80 is: 303.56
Step by Step Solution
- Step 1: Write the proportion equation
283.80 : 424.80 = 202.80 : x - Step 2: Convert to fraction form
283.80/424.80 = 202.80/x - Step 3: Cross multiply
283.80x = 424.80 × 202.80 - Step 4: Simplify right side
283.80x = 86,149.44 - Step 5: Solve for x
x = 86,149.44/283.80 - Step 6: Final answer
x = 303.56
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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.