Finding the Fourth Proportional to 247.84, 341.99 and 142.91
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Solution
The fourth proportional to 247.84, 341.99 and 142.91 is: 197.20
Step by Step Solution
- Step 1: Write the proportion equation
247.84 : 341.99 = 142.91 : x - Step 2: Convert to fraction form
247.84/341.99 = 142.91/x - Step 3: Cross multiply
247.84x = 341.99 × 142.91 - Step 4: Simplify right side
247.84x = 48,873.18 - Step 5: Solve for x
x = 48,873.18/247.84 - Step 6: Final answer
x = 197.20
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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.