Finding the Fourth Proportional to 513.04, 708 and 306
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Solution
The fourth proportional to 513.04, 708 and 306 is: 422.28
Step by Step Solution
- Step 1: Write the proportion equation
513.04 : 708 = 306 : x - Step 2: Convert to fraction form
513.04/708 = 306/x - Step 3: Cross multiply
513.04x = 708 × 306 - Step 4: Simplify right side
513.04x = 216,648 - Step 5: Solve for x
x = 216,648/513.04 - Step 6: Final answer
x = 422.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.