Finding the Fourth Proportional to 211,112.03, 291,337.08 and 115,622.75
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Solution
The fourth proportional to 211,112.03, 291,337.08 and 115,622.75 is: 159,560.75
Step by Step Solution
- Step 1: Write the proportion equation
211,112.03 : 291,337.08 = 115,622.75 : x - Step 2: Convert to fraction form
211,112.03/291,337.08 = 115,622.75/x - Step 3: Cross multiply
211,112.03x = 291,337.08 × 115,622.75 - Step 4: Simplify right side
211,112.03x = 33,685,194,366.57 - Step 5: Solve for x
x = 33,685,194,366.57/211,112.03 - Step 6: Final answer
x = 159,560.75
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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.