Finding the Fourth Proportional to 211,007.23, 291,193.58 and 130,432.68
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Solution
The fourth proportional to 211,007.23, 291,193.58 and 130,432.68 is: 179,999.33
Step by Step Solution
- Step 1: Write the proportion equation
211,007.23 : 291,193.58 = 130,432.68 : x - Step 2: Convert to fraction form
211,007.23/291,193.58 = 130,432.68/x - Step 3: Cross multiply
211,007.23x = 291,193.58 × 130,432.68 - Step 4: Simplify right side
211,007.23x = 37,981,159,364.28 - Step 5: Solve for x
x = 37,981,159,364.28/211,007.23 - Step 6: Final answer
x = 179,999.33
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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.