Finding the Fourth Proportional to 211,764.64, 292,213.68 and 126,879.52
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Solution
The fourth proportional to 211,764.64, 292,213.68 and 126,879.52 is: 175,080.84
Step by Step Solution
- Step 1: Write the proportion equation
211,764.64 : 292,213.68 = 126,879.52 : x - Step 2: Convert to fraction form
211,764.64/292,213.68 = 126,879.52/x - Step 3: Cross multiply
211,764.64x = 292,213.68 × 126,879.52 - Step 4: Simplify right side
211,764.64x = 37,075,931,455.83 - Step 5: Solve for x
x = 37,075,931,455.83/211,764.64 - Step 6: Final answer
x = 175,080.84
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1.5x scale
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.