Finding the Fourth Proportional to 203,116.68, 280,297.56 and 112,470.70
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Solution
The fourth proportional to 203,116.68, 280,297.56 and 112,470.70 is: 155,207.65
Step by Step Solution
- Step 1: Write the proportion equation
203,116.68 : 280,297.56 = 112,470.70 : x - Step 2: Convert to fraction form
203,116.68/280,297.56 = 112,470.70/x - Step 3: Cross multiply
203,116.68x = 280,297.56 × 112,470.70 - Step 4: Simplify right side
203,116.68x = 31,525,262,781.49 - Step 5: Solve for x
x = 31,525,262,781.49/203,116.68 - Step 6: Final answer
x = 155,207.65
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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.