Finding the Fourth Proportional to 633.19, 873.26 and 476.20
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Solution
The fourth proportional to 633.19, 873.26 and 476.20 is: 656.75
Step by Step Solution
- Step 1: Write the proportion equation
633.19 : 873.26 = 476.20 : x - Step 2: Convert to fraction form
633.19/873.26 = 476.20/x - Step 3: Cross multiply
633.19x = 873.26 × 476.20 - Step 4: Simplify right side
633.19x = 415,846.41 - Step 5: Solve for x
x = 415,846.41/633.19 - Step 6: Final answer
x = 656.75
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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.