Finding the Fourth Proportional to 346.49, 519.74 and 102.99
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Solution
The fourth proportional to 346.49, 519.74 and 102.99 is: 154.49
Step by Step Solution
- Step 1: Write the proportion equation
346.49 : 519.74 = 102.99 : x - Step 2: Convert to fraction form
346.49/519.74 = 102.99/x - Step 3: Cross multiply
346.49x = 519.74 × 102.99 - Step 4: Simplify right side
346.49x = 53,527.51 - Step 5: Solve for x
x = 53,527.51/346.49 - Step 6: Final answer
x = 154.49
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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.