Finding the Fourth Proportional to 303,878.94, 455,818.74 and 79,239.18
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Solution
The fourth proportional to 303,878.94, 455,818.74 and 79,239.18 is: 118,858.86
Step by Step Solution
- Step 1: Write the proportion equation
303,878.94 : 455,818.74 = 79,239.18 : x - Step 2: Convert to fraction form
303,878.94/455,818.74 = 79,239.18/x - Step 3: Cross multiply
303,878.94x = 455,818.74 × 79,239.18 - Step 4: Simplify right side
303,878.94x = 36,118,703,186.23 - Step 5: Solve for x
x = 36,118,703,186.23/303,878.94 - Step 6: Final answer
x = 118,858.86
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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.