Finding the Fourth Proportional to 211,011.05, 291,195.27 and 115,517.76
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Solution
The fourth proportional to 211,011.05, 291,195.27 and 115,517.76 is: 159,414.52
Step by Step Solution
- Step 1: Write the proportion equation
211,011.05 : 291,195.27 = 115,517.76 : x - Step 2: Convert to fraction form
211,011.05/291,195.27 = 115,517.76/x - Step 3: Cross multiply
211,011.05x = 291,195.27 × 115,517.76 - Step 4: Simplify right side
211,011.05x = 33,638,225,313.00 - Step 5: Solve for x
x = 33,638,225,313.00/211,011.05 - Step 6: Final answer
x = 159,414.52
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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.