Finding the Fourth Proportional to 169.19, 253.63 and 87.99
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Solution
The fourth proportional to 169.19, 253.63 and 87.99 is: 131.90
Step by Step Solution
- Step 1: Write the proportion equation
169.19 : 253.63 = 87.99 : x - Step 2: Convert to fraction form
169.19/253.63 = 87.99/x - Step 3: Cross multiply
169.19x = 253.63 × 87.99 - Step 4: Simplify right side
169.19x = 22,316.06 - Step 5: Solve for x
x = 22,316.06/169.19 - Step 6: Final answer
x = 131.90
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.