Finding the Fourth Proportional to 211,379.04, 291,703.01 and 115,883.69
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Solution
The fourth proportional to 211,379.04, 291,703.01 and 115,883.69 is: 159,919.45
Step by Step Solution
- Step 1: Write the proportion equation
211,379.04 : 291,703.01 = 115,883.69 : x - Step 2: Convert to fraction form
211,379.04/291,703.01 = 115,883.69/x - Step 3: Cross multiply
211,379.04x = 291,703.01 × 115,883.69 - Step 4: Simplify right side
211,379.04x = 33,803,619,144.97 - Step 5: Solve for x
x = 33,803,619,144.97/211,379.04 - Step 6: Final answer
x = 159,919.45
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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.