Finding the Fourth Proportional to 274,783.20, 379,193.36 and 153,935.52
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Solution
The fourth proportional to 274,783.20, 379,193.36 and 153,935.52 is: 212,426.84
Step by Step Solution
- Step 1: Write the proportion equation
274,783.20 : 379,193.36 = 153,935.52 : x - Step 2: Convert to fraction form
274,783.20/379,193.36 = 153,935.52/x - Step 3: Cross multiply
274,783.20x = 379,193.36 × 153,935.52 - Step 4: Simplify right side
274,783.20x = 58,371,327,052.15 - Step 5: Solve for x
x = 58,371,327,052.15/274,783.20 - Step 6: Final answer
x = 212,426.84
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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.