Finding the Fourth Proportional to 638,800.95, 958,297.12 and 206,373.92
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Solution
The fourth proportional to 638,800.95, 958,297.12 and 206,373.92 is: 309,591.80
Step by Step Solution
- Step 1: Write the proportion equation
638,800.95 : 958,297.12 = 206,373.92 : x - Step 2: Convert to fraction form
638,800.95/958,297.12 = 206,373.92/x - Step 3: Cross multiply
638,800.95x = 958,297.12 × 206,373.92 - Step 4: Simplify right side
638,800.95x = 197,767,534,422.97 - Step 5: Solve for x
x = 197,767,534,422.97/638,800.95 - Step 6: Final answer
x = 309,591.80
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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.