Finding the Fourth Proportional to 275,429.70, 413,144.55 and 157,331.70
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Solution
The fourth proportional to 275,429.70, 413,144.55 and 157,331.70 is: 235,997.55
Step by Step Solution
- Step 1: Write the proportion equation
275,429.70 : 413,144.55 = 157,331.70 : x - Step 2: Convert to fraction form
275,429.70/413,144.55 = 157,331.70/x - Step 3: Cross multiply
275,429.70x = 413,144.55 × 157,331.70 - Step 4: Simplify right side
275,429.70x = 65,000,734,397.24 - Step 5: Solve for x
x = 65,000,734,397.24/275,429.70 - Step 6: Final answer
x = 235,997.55
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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.