Finding the Fourth Proportional to 309.64, 464.36 and 93.14
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Solution
The fourth proportional to 309.64, 464.36 and 93.14 is: 139.68
Step by Step Solution
- Step 1: Write the proportion equation
309.64 : 464.36 = 93.14 : x - Step 2: Convert to fraction form
309.64/464.36 = 93.14/x - Step 3: Cross multiply
309.64x = 464.36 × 93.14 - Step 4: Simplify right side
309.64x = 43,250.49 - Step 5: Solve for x
x = 43,250.49/309.64 - Step 6: Final answer
x = 139.68
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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.