Finding the Fourth Proportional to 400.16, 551.93 and 252.63
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Solution
The fourth proportional to 400.16, 551.93 and 252.63 is: 348.45
Step by Step Solution
- Step 1: Write the proportion equation
400.16 : 551.93 = 252.63 : x - Step 2: Convert to fraction form
400.16/551.93 = 252.63/x - Step 3: Cross multiply
400.16x = 551.93 × 252.63 - Step 4: Simplify right side
400.16x = 139,432.81 - Step 5: Solve for x
x = 139,432.81/400.16 - Step 6: Final answer
x = 348.45
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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.