Finding the Fourth Proportional to 211,983.62, 292,536.50 and 121,339.13
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Solution
The fourth proportional to 211,983.62, 292,536.50 and 121,339.13 is: 167,447.48
Step by Step Solution
- Step 1: Write the proportion equation
211,983.62 : 292,536.50 = 121,339.13 : x - Step 2: Convert to fraction form
211,983.62/292,536.50 = 121,339.13/x - Step 3: Cross multiply
211,983.62x = 292,536.50 × 121,339.13 - Step 4: Simplify right side
211,983.62x = 35,496,122,333.87 - Step 5: Solve for x
x = 35,496,122,333.87/211,983.62 - Step 6: Final answer
x = 167,447.48
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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.