Finding the Fourth Proportional to 275,743.80, 413,615.70 and 135,775.80
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Solution
The fourth proportional to 275,743.80, 413,615.70 and 135,775.80 is: 203,663.70
Step by Step Solution
- Step 1: Write the proportion equation
275,743.80 : 413,615.70 = 135,775.80 : x - Step 2: Convert to fraction form
275,743.80/413,615.70 = 135,775.80/x - Step 3: Cross multiply
275,743.80x = 413,615.70 × 135,775.80 - Step 4: Simplify right side
275,743.80x = 56,159,002,560.06 - Step 5: Solve for x
x = 56,159,002,560.06/275,743.80 - Step 6: Final answer
x = 203,663.70
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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.