Finding the Fourth Proportional to 211,953.48, 292,511.92 and 121,337.76
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Solution
The fourth proportional to 211,953.48, 292,511.92 and 121,337.76 is: 167,455.34
Step by Step Solution
- Step 1: Write the proportion equation
211,953.48 : 292,511.92 = 121,337.76 : x - Step 2: Convert to fraction form
211,953.48/292,511.92 = 121,337.76/x - Step 3: Cross multiply
211,953.48x = 292,511.92 × 121,337.76 - Step 4: Simplify right side
211,953.48x = 35,492,741,146.10 - Step 5: Solve for x
x = 35,492,741,146.10/211,953.48 - Step 6: Final answer
x = 167,455.34
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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.