Finding the Fourth Proportional to 211,339.63, 291,678.52 and 130,793.09
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Solution
The fourth proportional to 211,339.63, 291,678.52 and 130,793.09 is: 180,512.93
Step by Step Solution
- Step 1: Write the proportion equation
211,339.63 : 291,678.52 = 130,793.09 : x - Step 2: Convert to fraction form
211,339.63/291,678.52 = 130,793.09/x - Step 3: Cross multiply
211,339.63x = 291,678.52 × 130,793.09 - Step 4: Simplify right side
211,339.63x = 38,149,534,917.43 - Step 5: Solve for x
x = 38,149,534,917.43/211,339.63 - Step 6: Final answer
x = 180,512.93
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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.