Finding the Fourth Proportional to 207.35, 310.99 and 104.53
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Solution
The fourth proportional to 207.35, 310.99 and 104.53 is: 156.78
Step by Step Solution
- Step 1: Write the proportion equation
207.35 : 310.99 = 104.53 : x - Step 2: Convert to fraction form
207.35/310.99 = 104.53/x - Step 3: Cross multiply
207.35x = 310.99 × 104.53 - Step 4: Simplify right side
207.35x = 32,507.78 - Step 5: Solve for x
x = 32,507.78/207.35 - Step 6: Final answer
x = 156.78
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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.