Finding the Fourth Proportional to 349.24, 524.05 and 321.70
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Solution
The fourth proportional to 349.24, 524.05 and 321.70 is: 482.72
Step by Step Solution
- Step 1: Write the proportion equation
349.24 : 524.05 = 321.70 : x - Step 2: Convert to fraction form
349.24/524.05 = 321.70/x - Step 3: Cross multiply
349.24x = 524.05 × 321.70 - Step 4: Simplify right side
349.24x = 168,584.26 - Step 5: Solve for x
x = 168,584.26/349.24 - Step 6: Final answer
x = 482.72
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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.