Finding the Fourth Proportional to 211,232.16, 316,813.68 and 78,175.44
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Solution
The fourth proportional to 211,232.16, 316,813.68 and 78,175.44 is: 117,250.37
Step by Step Solution
- Step 1: Write the proportion equation
211,232.16 : 316,813.68 = 78,175.44 : x - Step 2: Convert to fraction form
211,232.16/316,813.68 = 78,175.44/x - Step 3: Cross multiply
211,232.16x = 316,813.68 × 78,175.44 - Step 4: Simplify right side
211,232.16x = 24,767,048,832.02 - Step 5: Solve for x
x = 24,767,048,832.02/211,232.16 - Step 6: Final answer
x = 117,250.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.