Finding the Fourth Proportional to 467.12, 644.74 and 270.75
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Solution
The fourth proportional to 467.12, 644.74 and 270.75 is: 373.70
Step by Step Solution
- Step 1: Write the proportion equation
467.12 : 644.74 = 270.75 : x - Step 2: Convert to fraction form
467.12/644.74 = 270.75/x - Step 3: Cross multiply
467.12x = 644.74 × 270.75 - Step 4: Simplify right side
467.12x = 174,562.99 - Step 5: Solve for x
x = 174,562.99/467.12 - Step 6: Final answer
x = 373.70
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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.