Finding the Fourth Proportional to 211,184.80, 291,434.16 and 115,697.44
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Solution
The fourth proportional to 211,184.80, 291,434.16 and 115,697.44 is: 159,661.99
Step by Step Solution
- Step 1: Write the proportion equation
211,184.80 : 291,434.16 = 115,697.44 : x - Step 2: Convert to fraction form
211,184.80/291,434.16 = 115,697.44/x - Step 3: Cross multiply
211,184.80x = 291,434.16 × 115,697.44 - Step 4: Simplify right side
211,184.80x = 33,718,186,240.55 - Step 5: Solve for x
x = 33,718,186,240.55/211,184.80 - Step 6: Final answer
x = 159,661.99
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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.