Finding the Fourth Proportional to 370,428.99, 511,190.90 and 209,283.98
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Solution
The fourth proportional to 370,428.99, 511,190.90 and 209,283.98 is: 288,811.27
Step by Step Solution
- Step 1: Write the proportion equation
370,428.99 : 511,190.90 = 209,283.98 : x - Step 2: Convert to fraction form
370,428.99/511,190.90 = 209,283.98/x - Step 3: Cross multiply
370,428.99x = 511,190.90 × 209,283.98 - Step 4: Simplify right side
370,428.99x = 106,984,066,091.78 - Step 5: Solve for x
x = 106,984,066,091.78/370,428.99 - Step 6: Final answer
x = 288,811.27
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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.