Finding the Fourth Proportional to 369.90, 554.32 and 271.63
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Solution
The fourth proportional to 369.90, 554.32 and 271.63 is: 407.05
Step by Step Solution
- Step 1: Write the proportion equation
369.90 : 554.32 = 271.63 : x - Step 2: Convert to fraction form
369.90/554.32 = 271.63/x - Step 3: Cross multiply
369.90x = 554.32 × 271.63 - Step 4: Simplify right side
369.90x = 150,569.13 - Step 5: Solve for x
x = 150,569.13/369.90 - Step 6: Final answer
x = 407.05
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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.