Finding the Fourth Proportional to 211,214.07, 291,475.41 and 115,722.96
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Solution
The fourth proportional to 211,214.07, 291,475.41 and 115,722.96 is: 159,697.68
Step by Step Solution
- Step 1: Write the proportion equation
211,214.07 : 291,475.41 = 115,722.96 : x - Step 2: Convert to fraction form
211,214.07/291,475.41 = 115,722.96/x - Step 3: Cross multiply
211,214.07x = 291,475.41 × 115,722.96 - Step 4: Simplify right side
211,214.07x = 33,730,396,633.80 - Step 5: Solve for x
x = 33,730,396,633.80/211,214.07 - Step 6: Final answer
x = 159,697.68
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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.