Finding the Fourth Proportional to 309.42, 465.14 and 306.99
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Solution
The fourth proportional to 309.42, 465.14 and 306.99 is: 461.49
Step by Step Solution
- Step 1: Write the proportion equation
309.42 : 465.14 = 306.99 : x - Step 2: Convert to fraction form
309.42/465.14 = 306.99/x - Step 3: Cross multiply
309.42x = 465.14 × 306.99 - Step 4: Simplify right side
309.42x = 142,794.10 - Step 5: Solve for x
x = 142,794.10/309.42 - Step 6: Final answer
x = 461.49
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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.