Finding the Fourth Proportional to 284.04, 392.18 and 252.99
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Solution
The fourth proportional to 284.04, 392.18 and 252.99 is: 349.30
Step by Step Solution
- Step 1: Write the proportion equation
284.04 : 392.18 = 252.99 : x - Step 2: Convert to fraction form
284.04/392.18 = 252.99/x - Step 3: Cross multiply
284.04x = 392.18 × 252.99 - Step 4: Simplify right side
284.04x = 99,216.35 - Step 5: Solve for x
x = 99,216.35/284.04 - Step 6: Final answer
x = 349.30
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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.