Finding the Fourth Proportional to 405,377.46, 559,472.19 and 235,578.78
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Solution
The fourth proportional to 405,377.46, 559,472.19 and 235,578.78 is: 325,128.53
Step by Step Solution
- Step 1: Write the proportion equation
405,377.46 : 559,472.19 = 235,578.78 : x - Step 2: Convert to fraction form
405,377.46/559,472.19 = 235,578.78/x - Step 3: Cross multiply
405,377.46x = 559,472.19 × 235,578.78 - Step 4: Simplify right side
405,377.46x = 131,799,775,964.13 - Step 5: Solve for x
x = 131,799,775,964.13/405,377.46 - Step 6: Final answer
x = 325,128.53
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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.