Finding the Fourth Proportional to 340.11, 468.99 and 305.28
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Solution
The fourth proportional to 340.11, 468.99 and 305.28 is: 420.96
Step by Step Solution
- Step 1: Write the proportion equation
340.11 : 468.99 = 305.28 : x - Step 2: Convert to fraction form
340.11/468.99 = 305.28/x - Step 3: Cross multiply
340.11x = 468.99 × 305.28 - Step 4: Simplify right side
340.11x = 143,173.27 - Step 5: Solve for x
x = 143,173.27/340.11 - Step 6: Final answer
x = 420.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.