Finding the Fourth Proportional to 275,747.80, 413,621.70 and 157,431.10
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Solution
The fourth proportional to 275,747.80, 413,621.70 and 157,431.10 is: 236,146.65
Step by Step Solution
- Step 1: Write the proportion equation
275,747.80 : 413,621.70 = 157,431.10 : x - Step 2: Convert to fraction form
275,747.80/413,621.70 = 157,431.10/x - Step 3: Cross multiply
275,747.80x = 413,621.70 × 157,431.10 - Step 4: Simplify right side
275,747.80x = 65,116,919,214.87 - Step 5: Solve for x
x = 65,116,919,214.87/275,747.80 - Step 6: Final answer
x = 236,146.65
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1.5x scale
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.