Finding the Fourth Proportional to 634,157.40, 951,378.66 and 213,421.08
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Solution
The fourth proportional to 634,157.40, 951,378.66 and 213,421.08 is: 320,179.60
Step by Step Solution
- Step 1: Write the proportion equation
634,157.40 : 951,378.66 = 213,421.08 : x - Step 2: Convert to fraction form
634,157.40/951,378.66 = 213,421.08/x - Step 3: Cross multiply
634,157.40x = 951,378.66 × 213,421.08 - Step 4: Simplify right side
634,157.40x = 203,044,261,106.15 - Step 5: Solve for x
x = 203,044,261,106.15/634,157.40 - Step 6: Final answer
x = 320,179.60
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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.