Finding the Fourth Proportional to 403.69, 557.08 and 226.65
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Solution
The fourth proportional to 403.69, 557.08 and 226.65 is: 312.77
Step by Step Solution
- Step 1: Write the proportion equation
403.69 : 557.08 = 226.65 : x - Step 2: Convert to fraction form
403.69/557.08 = 226.65/x - Step 3: Cross multiply
403.69x = 557.08 × 226.65 - Step 4: Simplify right side
403.69x = 126,262.18 - Step 5: Solve for x
x = 126,262.18/403.69 - Step 6: Final answer
x = 312.77
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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.