Finding the Fourth Proportional to 399.93, 551.99 and 252.76
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Solution
The fourth proportional to 399.93, 551.99 and 252.76 is: 348.86
Step by Step Solution
- Step 1: Write the proportion equation
399.93 : 551.99 = 252.76 : x - Step 2: Convert to fraction form
399.93/551.99 = 252.76/x - Step 3: Cross multiply
399.93x = 551.99 × 252.76 - Step 4: Simplify right side
399.93x = 139,520.99 - Step 5: Solve for x
x = 139,520.99/399.93 - Step 6: Final answer
x = 348.86
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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.