Finding the Fourth Proportional to 131.49, 197.28 and 59.31
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Solution
The fourth proportional to 131.49, 197.28 and 59.31 is: 88.99
Step by Step Solution
- Step 1: Write the proportion equation
131.49 : 197.28 = 59.31 : x - Step 2: Convert to fraction form
131.49/197.28 = 59.31/x - Step 3: Cross multiply
131.49x = 197.28 × 59.31 - Step 4: Simplify right side
131.49x = 11,700.68 - Step 5: Solve for x
x = 11,700.68/131.49 - Step 6: Final answer
x = 88.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.