Finding the Fourth Proportional to 212,275.17, 292,786.68 and 121,598.05
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Solution
The fourth proportional to 212,275.17, 292,786.68 and 121,598.05 is: 167,717.63
Step by Step Solution
- Step 1: Write the proportion equation
212,275.17 : 292,786.68 = 121,598.05 : x - Step 2: Convert to fraction form
212,275.17/292,786.68 = 121,598.05/x - Step 3: Cross multiply
212,275.17x = 292,786.68 × 121,598.05 - Step 4: Simplify right side
212,275.17x = 35,602,290,042.05 - Step 5: Solve for x
x = 35,602,290,042.05/212,275.17 - Step 6: Final answer
x = 167,717.63
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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.