Finding the Fourth Proportional to 207.93, 312.30 and 207.93
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Solution
The fourth proportional to 207.93, 312.30 and 207.93 is: 312.30
Step by Step Solution
- Step 1: Write the proportion equation
207.93 : 312.30 = 207.93 : x - Step 2: Convert to fraction form
207.93/312.30 = 207.93/x - Step 3: Cross multiply
207.93x = 312.30 × 207.93 - Step 4: Simplify right side
207.93x = 64,936.54 - Step 5: Solve for x
x = 64,936.54/207.93 - Step 6: Final answer
x = 312.30
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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.