Finding the Fourth Proportional to 272,672.10, 376,190.10 and 157,888.08
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Solution
The fourth proportional to 272,672.10, 376,190.10 and 157,888.08 is: 217,829.15
Step by Step Solution
- Step 1: Write the proportion equation
272,672.10 : 376,190.10 = 157,888.08 : x - Step 2: Convert to fraction form
272,672.10/376,190.10 = 157,888.08/x - Step 3: Cross multiply
272,672.10x = 376,190.10 × 157,888.08 - Step 4: Simplify right side
272,672.10x = 59,395,932,604.01 - Step 5: Solve for x
x = 59,395,932,604.01/272,672.10 - Step 6: Final answer
x = 217,829.15
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1.5x scale
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.