Finding the Fourth Proportional to 202.99, 280.80 and 170.14
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Solution
The fourth proportional to 202.99, 280.80 and 170.14 is: 235.36
Step by Step Solution
- Step 1: Write the proportion equation
202.99 : 280.80 = 170.14 : x - Step 2: Convert to fraction form
202.99/280.80 = 170.14/x - Step 3: Cross multiply
202.99x = 280.80 × 170.14 - Step 4: Simplify right side
202.99x = 47,775.31 - Step 5: Solve for x
x = 47,775.31/202.99 - Step 6: Final answer
x = 235.36
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.