Finding the Fourth Proportional to 386,170.74, 579,649.77 and 266,235.66
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Solution
The fourth proportional to 386,170.74, 579,649.77 and 266,235.66 is: 399,624.89
Step by Step Solution
- Step 1: Write the proportion equation
386,170.74 : 579,649.77 = 266,235.66 : x - Step 2: Convert to fraction form
386,170.74/579,649.77 = 266,235.66/x - Step 3: Cross multiply
386,170.74x = 579,649.77 × 266,235.66 - Step 4: Simplify right side
386,170.74x = 154,323,439,084.80 - Step 5: Solve for x
x = 154,323,439,084.80/386,170.74 - Step 6: Final answer
x = 399,624.89
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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.