Finding the Fourth Proportional to 207.80, 286.48 and 134.08
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Solution
The fourth proportional to 207.80, 286.48 and 134.08 is: 184.85
Step by Step Solution
- Step 1: Write the proportion equation
207.80 : 286.48 = 134.08 : x - Step 2: Convert to fraction form
207.80/286.48 = 134.08/x - Step 3: Cross multiply
207.80x = 286.48 × 134.08 - Step 4: Simplify right side
207.80x = 38,411.24 - Step 5: Solve for x
x = 38,411.24/207.80 - Step 6: Final answer
x = 184.85
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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.