Finding the Fourth Proportional to 342.99, 513.99 and 306.36
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Solution
The fourth proportional to 342.99, 513.99 and 306.36 is: 459.10
Step by Step Solution
- Step 1: Write the proportion equation
342.99 : 513.99 = 306.36 : x - Step 2: Convert to fraction form
342.99/513.99 = 306.36/x - Step 3: Cross multiply
342.99x = 513.99 × 306.36 - Step 4: Simplify right side
342.99x = 157,465.98 - Step 5: Solve for x
x = 157,465.98/342.99 - Step 6: Final answer
x = 459.10
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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.