Finding the Fourth Proportional to 271.60, 407.36 and 88.99
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Solution
The fourth proportional to 271.60, 407.36 and 88.99 is: 133.47
Step by Step Solution
- Step 1: Write the proportion equation
271.60 : 407.36 = 88.99 : x - Step 2: Convert to fraction form
271.60/407.36 = 88.99/x - Step 3: Cross multiply
271.60x = 407.36 × 88.99 - Step 4: Simplify right side
271.60x = 36,250.17 - Step 5: Solve for x
x = 36,250.17/271.60 - Step 6: Final answer
x = 133.47
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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.