Finding the Fourth Proportional to 401.72, 602.71 and 219.28
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Solution
The fourth proportional to 401.72, 602.71 and 219.28 is: 328.99
Step by Step Solution
- Step 1: Write the proportion equation
401.72 : 602.71 = 219.28 : x - Step 2: Convert to fraction form
401.72/602.71 = 219.28/x - Step 3: Cross multiply
401.72x = 602.71 × 219.28 - Step 4: Simplify right side
401.72x = 132,162.25 - Step 5: Solve for x
x = 132,162.25/401.72 - Step 6: Final answer
x = 328.99
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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.