Finding the Fourth Proportional to 289,011.40, 433,517.10 and 266,201.80
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Solution
The fourth proportional to 289,011.40, 433,517.10 and 266,201.80 is: 399,302.70
Step by Step Solution
- Step 1: Write the proportion equation
289,011.40 : 433,517.10 = 266,201.80 : x - Step 2: Convert to fraction form
289,011.40/433,517.10 = 266,201.80/x - Step 3: Cross multiply
289,011.40x = 433,517.10 × 266,201.80 - Step 4: Simplify right side
289,011.40x = 115,403,032,350.78 - Step 5: Solve for x
x = 115,403,032,350.78/289,011.40 - Step 6: Final answer
x = 399,302.70
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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.