Finding the Fourth Proportional to 346.40, 518.99 and 288.99
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Solution
The fourth proportional to 346.40, 518.99 and 288.99 is: 432.97
Step by Step Solution
- Step 1: Write the proportion equation
346.40 : 518.99 = 288.99 : x - Step 2: Convert to fraction form
346.40/518.99 = 288.99/x - Step 3: Cross multiply
346.40x = 518.99 × 288.99 - Step 4: Simplify right side
346.40x = 149,981.48 - Step 5: Solve for x
x = 149,981.48/346.40 - Step 6: Final answer
x = 432.97
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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.