Finding the Fourth Proportional to 315,045.80, 472,445.84 and 137,431.70
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Solution
The fourth proportional to 315,045.80, 472,445.84 and 137,431.70 is: 206,093.96
Step by Step Solution
- Step 1: Write the proportion equation
315,045.80 : 472,445.84 = 137,431.70 : x - Step 2: Convert to fraction form
315,045.80/472,445.84 = 137,431.70/x - Step 3: Cross multiply
315,045.80x = 472,445.84 × 137,431.70 - Step 4: Simplify right side
315,045.80x = 64,929,034,949.13 - Step 5: Solve for x
x = 64,929,034,949.13/315,045.80 - Step 6: Final answer
x = 206,093.96
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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.