Finding the Fourth Proportional to 177,857.44, 245,373.09 and 109,755.74
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Solution
The fourth proportional to 177,857.44, 245,373.09 and 109,755.74 is: 151,419.61
Step by Step Solution
- Step 1: Write the proportion equation
177,857.44 : 245,373.09 = 109,755.74 : x - Step 2: Convert to fraction form
177,857.44/245,373.09 = 109,755.74/x - Step 3: Cross multiply
177,857.44x = 245,373.09 × 109,755.74 - Step 4: Simplify right side
177,857.44x = 26,931,105,069.04 - Step 5: Solve for x
x = 26,931,105,069.04/177,857.44 - Step 6: Final answer
x = 151,419.61
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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.