Finding the Fourth Proportional to 211,454.70, 291,810.42 and 115,955.10
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Solution
The fourth proportional to 211,454.70, 291,810.42 and 115,955.10 is: 160,019.65
Step by Step Solution
- Step 1: Write the proportion equation
211,454.70 : 291,810.42 = 115,955.10 : x - Step 2: Convert to fraction form
211,454.70/291,810.42 = 115,955.10/x - Step 3: Cross multiply
211,454.70x = 291,810.42 × 115,955.10 - Step 4: Simplify right side
211,454.70x = 33,836,906,432.14 - Step 5: Solve for x
x = 33,836,906,432.14/211,454.70 - Step 6: Final answer
x = 160,019.65
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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.