Finding the Fourth Proportional to 211,023.74, 291,213.61 and 115,539.32
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Solution
The fourth proportional to 211,023.74, 291,213.61 and 115,539.32 is: 159,444.72
Step by Step Solution
- Step 1: Write the proportion equation
211,023.74 : 291,213.61 = 115,539.32 : x - Step 2: Convert to fraction form
211,023.74/291,213.61 = 115,539.32/x - Step 3: Cross multiply
211,023.74x = 291,213.61 × 115,539.32 - Step 4: Simplify right side
211,023.74x = 33,646,620,729.23 - Step 5: Solve for x
x = 33,646,620,729.23/211,023.74 - Step 6: Final answer
x = 159,444.72
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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.