Finding the Fourth Proportional to 289.99, 435.21 and 202.76
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Solution
The fourth proportional to 289.99, 435.21 and 202.76 is: 304.29
Step by Step Solution
- Step 1: Write the proportion equation
289.99 : 435.21 = 202.76 : x - Step 2: Convert to fraction form
289.99/435.21 = 202.76/x - Step 3: Cross multiply
289.99x = 435.21 × 202.76 - Step 4: Simplify right side
289.99x = 88,242.12 - Step 5: Solve for x
x = 88,242.12/289.99 - Step 6: Final answer
x = 304.29
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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.