Finding the Fourth Proportional to 211,661.09, 292,070.30 and 119,790.68
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Solution
The fourth proportional to 211,661.09, 292,070.30 and 119,790.68 is: 165,298.68
Step by Step Solution
- Step 1: Write the proportion equation
211,661.09 : 292,070.30 = 119,790.68 : x - Step 2: Convert to fraction form
211,661.09/292,070.30 = 119,790.68/x - Step 3: Cross multiply
211,661.09x = 292,070.30 × 119,790.68 - Step 4: Simplify right side
211,661.09x = 34,987,297,785.50 - Step 5: Solve for x
x = 34,987,297,785.50/211,661.09 - Step 6: Final answer
x = 165,298.68
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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.