Finding the Fourth Proportional to 400.10, 551.93 and 252.68
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Solution
The fourth proportional to 400.10, 551.93 and 252.68 is: 348.56
Step by Step Solution
- Step 1: Write the proportion equation
400.10 : 551.93 = 252.68 : x - Step 2: Convert to fraction form
400.10/551.93 = 252.68/x - Step 3: Cross multiply
400.10x = 551.93 × 252.68 - Step 4: Simplify right side
400.10x = 139,457.65 - Step 5: Solve for x
x = 139,457.65/400.10 - Step 6: Final answer
x = 348.56
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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.