Finding the Fourth Proportional to 818,110.80, 1,227,207.80 and 257,150.80
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Solution
The fourth proportional to 818,110.80, 1,227,207.80 and 257,150.80 is: 385,739.28
Step by Step Solution
- Step 1: Write the proportion equation
818,110.80 : 1,227,207.80 = 257,150.80 : x - Step 2: Convert to fraction form
818,110.80/1,227,207.80 = 257,150.80/x - Step 3: Cross multiply
818,110.80x = 1,227,207.80 × 257,150.80 - Step 4: Simplify right side
818,110.80x = 315,577,467,536.24 - Step 5: Solve for x
x = 315,577,467,536.24/818,110.80 - Step 6: Final answer
x = 385,739.28
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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.