Finding the Fourth Proportional to 315,381.74, 473,134.92 and 115,703.96
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Solution
The fourth proportional to 315,381.74, 473,134.92 and 115,703.96 is: 173,578.80
Step by Step Solution
- Step 1: Write the proportion equation
315,381.74 : 473,134.92 = 115,703.96 : x - Step 2: Convert to fraction form
315,381.74/473,134.92 = 115,703.96/x - Step 3: Cross multiply
315,381.74x = 473,134.92 × 115,703.96 - Step 4: Simplify right side
315,381.74x = 54,743,583,858.28 - Step 5: Solve for x
x = 54,743,583,858.28/315,381.74 - Step 6: Final answer
x = 173,578.80
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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.