Finding the Fourth Proportional to 309.72, 464.67 and 93.31
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Solution
The fourth proportional to 309.72, 464.67 and 93.31 is: 139.99
Step by Step Solution
- Step 1: Write the proportion equation
309.72 : 464.67 = 93.31 : x - Step 2: Convert to fraction form
309.72/464.67 = 93.31/x - Step 3: Cross multiply
309.72x = 464.67 × 93.31 - Step 4: Simplify right side
309.72x = 43,357.20 - Step 5: Solve for x
x = 43,357.20/309.72 - Step 6: Final answer
x = 139.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.