Finding the Fourth Proportional to 211,451.36, 291,803.28 and 115,958.76
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Solution
The fourth proportional to 211,451.36, 291,803.28 and 115,958.76 is: 160,023.31
Step by Step Solution
- Step 1: Write the proportion equation
211,451.36 : 291,803.28 = 115,958.76 : x - Step 2: Convert to fraction form
211,451.36/291,803.28 = 115,958.76/x - Step 3: Cross multiply
211,451.36x = 291,803.28 × 115,958.76 - Step 4: Simplify right side
211,451.36x = 33,837,146,512.73 - Step 5: Solve for x
x = 33,837,146,512.73/211,451.36 - Step 6: Final answer
x = 160,023.31
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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.