Finding the Fourth Proportional to 207.64, 286.52 and 124.76
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Solution
The fourth proportional to 207.64, 286.52 and 124.76 is: 172.15
Step by Step Solution
- Step 1: Write the proportion equation
207.64 : 286.52 = 124.76 : x - Step 2: Convert to fraction form
207.64/286.52 = 124.76/x - Step 3: Cross multiply
207.64x = 286.52 × 124.76 - Step 4: Simplify right side
207.64x = 35,746.24 - Step 5: Solve for x
x = 35,746.24/207.64 - Step 6: Final answer
x = 172.15
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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.