Finding the Fourth Proportional to 511.68, 706 and 304.68
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Solution
The fourth proportional to 511.68, 706 and 304.68 is: 420.39
Step by Step Solution
- Step 1: Write the proportion equation
511.68 : 706 = 304.68 : x - Step 2: Convert to fraction form
511.68/706 = 304.68/x - Step 3: Cross multiply
511.68x = 706 × 304.68 - Step 4: Simplify right side
511.68x = 215,104.08 - Step 5: Solve for x
x = 215,104.08/511.68 - Step 6: Final answer
x = 420.39
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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.