Finding the Fourth Proportional to 207.24, 310.93 and 70.31
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Solution
The fourth proportional to 207.24, 310.93 and 70.31 is: 105.48
Step by Step Solution
- Step 1: Write the proportion equation
207.24 : 310.93 = 70.31 : x - Step 2: Convert to fraction form
207.24/310.93 = 70.31/x - Step 3: Cross multiply
207.24x = 310.93 × 70.31 - Step 4: Simplify right side
207.24x = 21,859.76 - Step 5: Solve for x
x = 21,859.76/207.24 - Step 6: Final answer
x = 105.48
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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.