Finding the Fourth Proportional to 373,278.49, 515,102.12 and 212,111.17
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Solution
The fourth proportional to 373,278.49, 515,102.12 and 212,111.17 is: 292,700.80
Step by Step Solution
- Step 1: Write the proportion equation
373,278.49 : 515,102.12 = 212,111.17 : x - Step 2: Convert to fraction form
373,278.49/515,102.12 = 212,111.17/x - Step 3: Cross multiply
373,278.49x = 515,102.12 × 212,111.17 - Step 4: Simplify right side
373,278.49x = 109,258,911,789.79 - Step 5: Solve for x
x = 109,258,911,789.79/373,278.49 - Step 6: Final answer
x = 292,700.80
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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.