Finding the Fourth Proportional to 211,328.34, 291,628.51 and 115,832.98
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Solution
The fourth proportional to 211,328.34, 291,628.51 and 115,832.98 is: 159,846.99
Step by Step Solution
- Step 1: Write the proportion equation
211,328.34 : 291,628.51 = 115,832.98 : x - Step 2: Convert to fraction form
211,328.34/291,628.51 = 115,832.98/x - Step 3: Cross multiply
211,328.34x = 291,628.51 × 115,832.98 - Step 4: Simplify right side
211,328.34x = 33,780,199,366.26 - Step 5: Solve for x
x = 33,780,199,366.26/211,328.34 - Step 6: Final answer
x = 159,846.99
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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.