Finding the Fourth Proportional to 305.20, 457.28 and 240.62
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Solution
The fourth proportional to 305.20, 457.28 and 240.62 is: 360.51
Step by Step Solution
- Step 1: Write the proportion equation
305.20 : 457.28 = 240.62 : x - Step 2: Convert to fraction form
305.20/457.28 = 240.62/x - Step 3: Cross multiply
305.20x = 457.28 × 240.62 - Step 4: Simplify right side
305.20x = 110,028.13 - Step 5: Solve for x
x = 110,028.13/305.20 - Step 6: Final answer
x = 360.51
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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.