Finding the Fourth Proportional to 211,035.11, 291,228.44 and 115,541.78
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Solution
The fourth proportional to 211,035.11, 291,228.44 and 115,541.78 is: 159,447.65
Step by Step Solution
- Step 1: Write the proportion equation
211,035.11 : 291,228.44 = 115,541.78 : x - Step 2: Convert to fraction form
211,035.11/291,228.44 = 115,541.78/x - Step 3: Cross multiply
211,035.11x = 291,228.44 × 115,541.78 - Step 4: Simplify right side
211,035.11x = 33,649,052,494.59 - Step 5: Solve for x
x = 33,649,052,494.59/211,035.11 - Step 6: Final answer
x = 159,447.65
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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.