Finding the Fourth Proportional to 305,111.04, 421,102.08 and 177,861.12
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Solution
The fourth proportional to 305,111.04, 421,102.08 and 177,861.12 is: 245,476.82
Step by Step Solution
- Step 1: Write the proportion equation
305,111.04 : 421,102.08 = 177,861.12 : x - Step 2: Convert to fraction form
305,111.04/421,102.08 = 177,861.12/x - Step 3: Cross multiply
305,111.04x = 421,102.08 × 177,861.12 - Step 4: Simplify right side
305,111.04x = 74,897,687,583.13 - Step 5: Solve for x
x = 74,897,687,583.13/305,111.04 - Step 6: Final answer
x = 245,476.82
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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.