Finding the Fourth Proportional to 386,765.55, 533,728.17 and 214,673.49
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Solution
The fourth proportional to 386,765.55, 533,728.17 and 214,673.49 is: 296,244.82
Step by Step Solution
- Step 1: Write the proportion equation
386,765.55 : 533,728.17 = 214,673.49 : x - Step 2: Convert to fraction form
386,765.55/533,728.17 = 214,673.49/x - Step 3: Cross multiply
386,765.55x = 533,728.17 × 214,673.49 - Step 4: Simplify right side
386,765.55x = 114,577,288,965.21 - Step 5: Solve for x
x = 114,577,288,965.21/386,765.55 - Step 6: Final answer
x = 296,244.82
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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.