Finding the Fourth Proportional to 274,853.79, 379,309.10 and 153,996.06
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Solution
The fourth proportional to 274,853.79, 379,309.10 and 153,996.06 is: 212,520.65
Step by Step Solution
- Step 1: Write the proportion equation
274,853.79 : 379,309.10 = 153,996.06 : x - Step 2: Convert to fraction form
274,853.79/379,309.10 = 153,996.06/x - Step 3: Cross multiply
274,853.79x = 379,309.10 × 153,996.06 - Step 4: Simplify right side
274,853.79x = 58,412,106,922.15 - Step 5: Solve for x
x = 58,412,106,922.15/274,853.79 - Step 6: Final answer
x = 212,520.65
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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.