Finding the Fourth Proportional to 279,168.14, 418,685.97 and 99,238.70
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Solution
The fourth proportional to 279,168.14, 418,685.97 and 99,238.70 is: 148,834.50
Step by Step Solution
- Step 1: Write the proportion equation
279,168.14 : 418,685.97 = 99,238.70 : x - Step 2: Convert to fraction form
279,168.14/418,685.97 = 99,238.70/x - Step 3: Cross multiply
279,168.14x = 418,685.97 × 99,238.70 - Step 4: Simplify right side
279,168.14x = 41,549,851,371.04 - Step 5: Solve for x
x = 41,549,851,371.04/279,168.14 - Step 6: Final answer
x = 148,834.50
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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.