Finding the Fourth Proportional to 274,715.49, 379,102.91 and 153,855.80
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Solution
The fourth proportional to 274,715.49, 379,102.91 and 153,855.80 is: 212,318.49
Step by Step Solution
- Step 1: Write the proportion equation
274,715.49 : 379,102.91 = 153,855.80 : x - Step 2: Convert to fraction form
274,715.49/379,102.91 = 153,855.80/x - Step 3: Cross multiply
274,715.49x = 379,102.91 × 153,855.80 - Step 4: Simplify right side
274,715.49x = 58,327,178,835.58 - Step 5: Solve for x
x = 58,327,178,835.58/274,715.49 - Step 6: Final answer
x = 212,318.49
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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.