Finding the Fourth Proportional to 284.88, 392.99 and 202.10
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Solution
The fourth proportional to 284.88, 392.99 and 202.10 is: 278.80
Step by Step Solution
- Step 1: Write the proportion equation
284.88 : 392.99 = 202.10 : x - Step 2: Convert to fraction form
284.88/392.99 = 202.10/x - Step 3: Cross multiply
284.88x = 392.99 × 202.10 - Step 4: Simplify right side
284.88x = 79,423.28 - Step 5: Solve for x
x = 79,423.28/284.88 - Step 6: Final answer
x = 278.80
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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.