Finding the Fourth Proportional to 423,142.68, 634,716.36 and 107,599.80
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Solution
The fourth proportional to 423,142.68, 634,716.36 and 107,599.80 is: 161,400.30
Step by Step Solution
- Step 1: Write the proportion equation
423,142.68 : 634,716.36 = 107,599.80 : x - Step 2: Convert to fraction form
423,142.68/634,716.36 = 107,599.80/x - Step 3: Cross multiply
423,142.68x = 634,716.36 × 107,599.80 - Step 4: Simplify right side
423,142.68x = 68,295,353,392.73 - Step 5: Solve for x
x = 68,295,353,392.73/423,142.68 - Step 6: Final answer
x = 161,400.30
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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.