Finding the Fourth Proportional to 305.36, 457.25 and 279.99
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Solution
The fourth proportional to 305.36, 457.25 and 279.99 is: 419.26
Step by Step Solution
- Step 1: Write the proportion equation
305.36 : 457.25 = 279.99 : x - Step 2: Convert to fraction form
305.36/457.25 = 279.99/x - Step 3: Cross multiply
305.36x = 457.25 × 279.99 - Step 4: Simplify right side
305.36x = 128,026.13 - Step 5: Solve for x
x = 128,026.13/305.36 - Step 6: Final answer
x = 419.26
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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.