Finding the Fourth Proportional to 211,379.29, 291,703.35 and 115,883.94
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Solution
The fourth proportional to 211,379.29, 291,703.35 and 115,883.94 is: 159,919.80
Step by Step Solution
- Step 1: Write the proportion equation
211,379.29 : 291,703.35 = 115,883.94 : x - Step 2: Convert to fraction form
211,379.29/291,703.35 = 115,883.94/x - Step 3: Cross multiply
211,379.29x = 291,703.35 × 115,883.94 - Step 4: Simplify right side
211,379.29x = 33,803,733,509.20 - Step 5: Solve for x
x = 33,803,733,509.20/211,379.29 - Step 6: Final answer
x = 159,919.80
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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.