Finding the Fourth Proportional to 309.93, 464.99 and 104.55
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Solution
The fourth proportional to 309.93, 464.99 and 104.55 is: 156.86
Step by Step Solution
- Step 1: Write the proportion equation
309.93 : 464.99 = 104.55 : x - Step 2: Convert to fraction form
309.93/464.99 = 104.55/x - Step 3: Cross multiply
309.93x = 464.99 × 104.55 - Step 4: Simplify right side
309.93x = 48,614.18 - Step 5: Solve for x
x = 48,614.18/309.93 - Step 6: Final answer
x = 156.86
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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.