Finding the Fourth Proportional to 328.99, 492.41 and 292.99
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Solution
The fourth proportional to 328.99, 492.41 and 292.99 is: 438.52
Step by Step Solution
- Step 1: Write the proportion equation
328.99 : 492.41 = 292.99 : x - Step 2: Convert to fraction form
328.99/492.41 = 292.99/x - Step 3: Cross multiply
328.99x = 492.41 × 292.99 - Step 4: Simplify right side
328.99x = 144,269.74 - Step 5: Solve for x
x = 144,269.74/328.99 - Step 6: Final answer
x = 438.52
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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.