Finding the Fourth Proportional to 164.24, 246.44 and 87.19
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Solution
The fourth proportional to 164.24, 246.44 and 87.19 is: 130.82
Step by Step Solution
- Step 1: Write the proportion equation
164.24 : 246.44 = 87.19 : x - Step 2: Convert to fraction form
164.24/246.44 = 87.19/x - Step 3: Cross multiply
164.24x = 246.44 × 87.19 - Step 4: Simplify right side
164.24x = 21,485.98 - Step 5: Solve for x
x = 21,485.98/164.24 - Step 6: Final answer
x = 130.82
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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.