Finding the Fourth Proportional to 158.54, 237.82 and 42.99
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Solution
The fourth proportional to 158.54, 237.82 and 42.99 is: 64.48
Step by Step Solution
- Step 1: Write the proportion equation
158.54 : 237.82 = 42.99 : x - Step 2: Convert to fraction form
158.54/237.82 = 42.99/x - Step 3: Cross multiply
158.54x = 237.82 × 42.99 - Step 4: Simplify right side
158.54x = 10,222.88 - Step 5: Solve for x
x = 10,222.88/158.54 - Step 6: Final answer
x = 64.48
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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.