Finding the Fourth Proportional to 217.24, 299.78 and 118.99
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Solution
The fourth proportional to 217.24, 299.78 and 118.99 is: 164.20
Step by Step Solution
- Step 1: Write the proportion equation
217.24 : 299.78 = 118.99 : x - Step 2: Convert to fraction form
217.24/299.78 = 118.99/x - Step 3: Cross multiply
217.24x = 299.78 × 118.99 - Step 4: Simplify right side
217.24x = 35,671.05 - Step 5: Solve for x
x = 35,671.05/217.24 - Step 6: Final answer
x = 164.20
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.