Finding the Fourth Proportional to 212,277.05, 292,984.18 and 121,693.82
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Solution
The fourth proportional to 212,277.05, 292,984.18 and 121,693.82 is: 167,961.47
Step by Step Solution
- Step 1: Write the proportion equation
212,277.05 : 292,984.18 = 121,693.82 : x - Step 2: Convert to fraction form
212,277.05/292,984.18 = 121,693.82/x - Step 3: Cross multiply
212,277.05x = 292,984.18 × 121,693.82 - Step 4: Simplify right side
212,277.05x = 35,654,364,491.99 - Step 5: Solve for x
x = 35,654,364,491.99/212,277.05 - Step 6: Final answer
x = 167,961.47
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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.