Finding the Fourth Proportional to 309.95, 464.97 and 93.55
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Solution
The fourth proportional to 309.95, 464.97 and 93.55 is: 140.33
Step by Step Solution
- Step 1: Write the proportion equation
309.95 : 464.97 = 93.55 : x - Step 2: Convert to fraction form
309.95/464.97 = 93.55/x - Step 3: Cross multiply
309.95x = 464.97 × 93.55 - Step 4: Simplify right side
309.95x = 43,497.13 - Step 5: Solve for x
x = 43,497.13/309.95 - Step 6: Final answer
x = 140.33
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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.