Finding the Fourth Proportional to 620.19, 930.24 and 347.99
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Solution
The fourth proportional to 620.19, 930.24 and 347.99 is: 521.95
Step by Step Solution
- Step 1: Write the proportion equation
620.19 : 930.24 = 347.99 : x - Step 2: Convert to fraction form
620.19/930.24 = 347.99/x - Step 3: Cross multiply
620.19x = 930.24 × 347.99 - Step 4: Simplify right side
620.19x = 323,709.57 - Step 5: Solve for x
x = 323,709.57/620.19 - Step 6: Final answer
x = 521.95
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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.