Finding the Fourth Proportional to 418,211.20, 577,135.04 and 227,224.96
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Solution
The fourth proportional to 418,211.20, 577,135.04 and 227,224.96 is: 313,572.39
Step by Step Solution
- Step 1: Write the proportion equation
418,211.20 : 577,135.04 = 227,224.96 : x - Step 2: Convert to fraction form
418,211.20/577,135.04 = 227,224.96/x - Step 3: Cross multiply
418,211.20x = 577,135.04 × 227,224.96 - Step 4: Simplify right side
418,211.20x = 131,139,486,378.60 - Step 5: Solve for x
x = 131,139,486,378.60/418,211.20 - Step 6: Final answer
x = 313,572.39
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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.