Finding the Fourth Proportional to 115.08, 159.21 and 110.58
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Solution
The fourth proportional to 115.08, 159.21 and 110.58 is: 152.98
Step by Step Solution
- Step 1: Write the proportion equation
115.08 : 159.21 = 110.58 : x - Step 2: Convert to fraction form
115.08/159.21 = 110.58/x - Step 3: Cross multiply
115.08x = 159.21 × 110.58 - Step 4: Simplify right side
115.08x = 17,605.44 - Step 5: Solve for x
x = 17,605.44/115.08 - Step 6: Final answer
x = 152.98
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.