Finding the Fourth Proportional to 202.68, 303.93 and 79.26
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Solution
The fourth proportional to 202.68, 303.93 and 79.26 is: 118.85
Step by Step Solution
- Step 1: Write the proportion equation
202.68 : 303.93 = 79.26 : x - Step 2: Convert to fraction form
202.68/303.93 = 79.26/x - Step 3: Cross multiply
202.68x = 303.93 × 79.26 - Step 4: Simplify right side
202.68x = 24,089.49 - Step 5: Solve for x
x = 24,089.49/202.68 - Step 6: Final answer
x = 118.85
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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.