Finding the Fourth Proportional to 450.43, 621.74 and 263.99
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Solution
The fourth proportional to 450.43, 621.74 and 263.99 is: 364.40
Step by Step Solution
- Step 1: Write the proportion equation
450.43 : 621.74 = 263.99 : x - Step 2: Convert to fraction form
450.43/621.74 = 263.99/x - Step 3: Cross multiply
450.43x = 621.74 × 263.99 - Step 4: Simplify right side
450.43x = 164,135.36 - Step 5: Solve for x
x = 164,135.36/450.43 - Step 6: Final answer
x = 364.40
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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.