Finding the Fourth Proportional to 287.99, 397.46 and 169.99
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Solution
The fourth proportional to 287.99, 397.46 and 169.99 is: 234.61
Step by Step Solution
- Step 1: Write the proportion equation
287.99 : 397.46 = 169.99 : x - Step 2: Convert to fraction form
287.99/397.46 = 169.99/x - Step 3: Cross multiply
287.99x = 397.46 × 169.99 - Step 4: Simplify right side
287.99x = 67,564.23 - Step 5: Solve for x
x = 67,564.23/287.99 - Step 6: Final answer
x = 234.61
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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.