Finding the Fourth Proportional to 274,492.54, 378,713.34 and 153,614.62
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Solution
The fourth proportional to 274,492.54, 378,713.34 and 153,614.62 is: 211,939.84
Step by Step Solution
- Step 1: Write the proportion equation
274,492.54 : 378,713.34 = 153,614.62 : x - Step 2: Convert to fraction form
274,492.54/378,713.34 = 153,614.62/x - Step 3: Cross multiply
274,492.54x = 378,713.34 × 153,614.62 - Step 4: Simplify right side
274,492.54x = 58,175,905,813.03 - Step 5: Solve for x
x = 58,175,905,813.03/274,492.54 - Step 6: Final answer
x = 211,939.84
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1.5x scale
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.