Finding the Fourth Proportional to 309.06, 464.06 and 269.99
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Solution
The fourth proportional to 309.06, 464.06 and 269.99 is: 405.40
Step by Step Solution
- Step 1: Write the proportion equation
309.06 : 464.06 = 269.99 : x - Step 2: Convert to fraction form
309.06/464.06 = 269.99/x - Step 3: Cross multiply
309.06x = 464.06 × 269.99 - Step 4: Simplify right side
309.06x = 125,291.44 - Step 5: Solve for x
x = 125,291.44/309.06 - Step 6: Final answer
x = 405.40
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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.