Finding the Fourth Proportional to 303,656.70, 455,397.97 and 90,415.70
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Solution
The fourth proportional to 303,656.70, 455,397.97 and 90,415.70 is: 135,597.62
Step by Step Solution
- Step 1: Write the proportion equation
303,656.70 : 455,397.97 = 90,415.70 : x - Step 2: Convert to fraction form
303,656.70/455,397.97 = 90,415.70/x - Step 3: Cross multiply
303,656.70x = 455,397.97 × 90,415.70 - Step 4: Simplify right side
303,656.70x = 41,175,126,236.13 - Step 5: Solve for x
x = 41,175,126,236.13/303,656.70 - Step 6: Final answer
x = 135,597.62
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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.