Finding the Fourth Proportional to 395.20, 592.80 and 202.88
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Solution
The fourth proportional to 395.20, 592.80 and 202.88 is: 304.32
Step by Step Solution
- Step 1: Write the proportion equation
395.20 : 592.80 = 202.88 : x - Step 2: Convert to fraction form
395.20/592.80 = 202.88/x - Step 3: Cross multiply
395.20x = 592.80 × 202.88 - Step 4: Simplify right side
395.20x = 120,267.26 - Step 5: Solve for x
x = 120,267.26/395.20 - Step 6: Final answer
x = 304.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.