Finding the Fourth Proportional to 284.93, 393.19 and 202.06
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Solution
The fourth proportional to 284.93, 393.19 and 202.06 is: 278.83
Step by Step Solution
- Step 1: Write the proportion equation
284.93 : 393.19 = 202.06 : x - Step 2: Convert to fraction form
284.93/393.19 = 202.06/x - Step 3: Cross multiply
284.93x = 393.19 × 202.06 - Step 4: Simplify right side
284.93x = 79,447.97 - Step 5: Solve for x
x = 79,447.97/284.93 - Step 6: Final answer
x = 278.83
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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.