Finding the Fourth Proportional to 370,431.36, 511,191.36 and 209,293.92
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Solution
The fourth proportional to 370,431.36, 511,191.36 and 209,293.92 is: 288,823.40
Step by Step Solution
- Step 1: Write the proportion equation
370,431.36 : 511,191.36 = 209,293.92 : x - Step 2: Convert to fraction form
370,431.36/511,191.36 = 209,293.92/x - Step 3: Cross multiply
370,431.36x = 511,191.36 × 209,293.92 - Step 4: Simplify right side
370,431.36x = 106,989,243,604.53 - Step 5: Solve for x
x = 106,989,243,604.53/370,431.36 - Step 6: Final answer
x = 288,823.40
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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.