Finding the Fourth Proportional to 531.74, 733.91 and 321.95
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Solution
The fourth proportional to 531.74, 733.91 and 321.95 is: 444.35
Step by Step Solution
- Step 1: Write the proportion equation
531.74 : 733.91 = 321.95 : x - Step 2: Convert to fraction form
531.74/733.91 = 321.95/x - Step 3: Cross multiply
531.74x = 733.91 × 321.95 - Step 4: Simplify right side
531.74x = 236,277.05 - Step 5: Solve for x
x = 236,277.05/531.74 - Step 6: Final answer
x = 444.35
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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.