Finding the Fourth Proportional to 284.97, 393.30 and 202.08
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Solution
The fourth proportional to 284.97, 393.30 and 202.08 is: 278.90
Step by Step Solution
- Step 1: Write the proportion equation
284.97 : 393.30 = 202.08 : x - Step 2: Convert to fraction form
284.97/393.30 = 202.08/x - Step 3: Cross multiply
284.97x = 393.30 × 202.08 - Step 4: Simplify right side
284.97x = 79,478.06 - Step 5: Solve for x
x = 79,478.06/284.97 - Step 6: Final answer
x = 278.90
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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.