Finding the Fourth Proportional to 224,199.81, 309,220.79 and 143,634.84
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Solution
The fourth proportional to 224,199.81, 309,220.79 and 143,634.84 is: 198,103.99
Step by Step Solution
- Step 1: Write the proportion equation
224,199.81 : 309,220.79 = 143,634.84 : x - Step 2: Convert to fraction form
224,199.81/309,220.79 = 143,634.84/x - Step 3: Cross multiply
224,199.81x = 309,220.79 × 143,634.84 - Step 4: Simplify right side
224,199.81x = 44,414,877,978.15 - Step 5: Solve for x
x = 44,414,877,978.15/224,199.81 - Step 6: Final answer
x = 198,103.99
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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.