Finding the Fourth Proportional to 279,941.70, 419,912.55 and 201,209.70
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Solution
The fourth proportional to 279,941.70, 419,912.55 and 201,209.70 is: 301,814.55
Step by Step Solution
- Step 1: Write the proportion equation
279,941.70 : 419,912.55 = 201,209.70 : x - Step 2: Convert to fraction form
279,941.70/419,912.55 = 201,209.70/x - Step 3: Cross multiply
279,941.70x = 419,912.55 × 201,209.70 - Step 4: Simplify right side
279,941.70x = 84,490,478,211.74 - Step 5: Solve for x
x = 84,490,478,211.74/279,941.70 - Step 6: Final answer
x = 301,814.55
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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.