Finding the Fourth Proportional to 274,631.13, 411,946.70 and 74,956.84
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Solution
The fourth proportional to 274,631.13, 411,946.70 and 74,956.84 is: 112,435.26
Step by Step Solution
- Step 1: Write the proportion equation
274,631.13 : 411,946.70 = 74,956.84 : x - Step 2: Convert to fraction form
274,631.13/411,946.70 = 74,956.84/x - Step 3: Cross multiply
274,631.13x = 411,946.70 × 74,956.84 - Step 4: Simplify right side
274,631.13x = 30,878,222,880.43 - Step 5: Solve for x
x = 30,878,222,880.43/274,631.13 - Step 6: Final answer
x = 112,435.26
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.